past tense could /kəd/ /ˈkʊd/ present tense for both singular and plural can negative cannot /ˈkænɑt/ /kəˈnɑːt/ Brit /ˈkænət/ or can't /ˈkænt/ Brit /ˈkɑːnt/ past tense could /kəd/ /ˈkʊd/ present tense for both singular and plural can negative cannot /ˈkænɑt/ /kəˈnɑːt/ Brit /ˈkænət/ or can't /ˈkænt/ Brit /ˈkɑːnt/ Learner's definition of CAN
[modal verb]
1
: to be able to (do something)能(做某事) -
I don't need any help. I can do it myself.我不需要任何帮助,我自己能做。
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I can't decide what to do.我决定不了做什么。
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All we can do [=the only thing we can do] now is wait.我们现在能做的就是等待。
: to know how to (do something)会,懂得(做某事) : to have the power or skill to (do something)能,会(表能力或技能) -
A weight lifter can lift a very heavy weight.举重运动员能举起很重的重物。
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She can play the piano.她会弹钢琴。
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Only Congress can do that.这种事只有国会能做。
: to be designed to (do something)能(表功能) -
a car that can hold five people [=a car that has enough room for five people]能容纳五人的汽车
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How fast can [=does, will] the car go?这辆车能跑多快?
—
sometimes used without a following verb有时不接动词使用 -
I visit her whenever I can.我能看她的时候就去看她。
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I don't know if I'll be able to fix the problem, but I'll do what I can.不知道我能否解决这个问题,但我会尽力的。
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Please help us if you can.如果可以的话请帮帮我们吧。
2
—
used to describe what someone sees, feels, thinks, etc.有能力,(见到、感受到、想到等) -
“Can you see him yet?” “Yes, I can see him clearly.”“你还能看见他吗?”“能,很清楚。”
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I can barely hear you.我几乎听不到你说什么。
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Can [=do] you remember/understand how to do it?你记得/懂得怎么做吗?
3
a —
used to say that something is or is not possible可能,也许,有可能,会(表可能性) -
Do you think he can still be alive? [=do you think it is possible that he is still alive?]你觉得他还有可能活着吗?
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I don't think he can still be alive. [=I think he must be dead]我觉得他不可能还活着。
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These problems can be dealt with more easily at the local level.在地方层面上处理这些问题可能更容易些。
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You can't always get what you want in life.生活中你不可能总能得到自己想要的。
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At this time of year many birds can be found on the island. [=there are many birds on the island at this time of year]每年的这个时候,岛上都会有很多鸟。
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If you don't tell me what the problem is, I can't help you.如果你不告诉我问题的所在,我就帮不了你。
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You can't be very smart [=you aren't very smart] if you believe that!你如果信了就说明你不太聪明。
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He was supposed to be here an hour ago. Where can he (possibly) be? [=where is he?]他应该一小时前就到这儿的,可他现在在哪儿呢?
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sometimes used in the emphatic phrase as…as can be有时用于表强调的短语as…as can be b —
used in speech to express surprise or disbelief用于口语,表示惊奇或怀疑 -
You must be joking! You can't/cannot (possibly) be serious!你肯定是在开玩笑!你不可能是认真的吧!
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He can't really have meant that. [=I don't believe that he meant that]他不可能真是那个意思。
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You can't (possibly) believe that!你不可能相信吧!
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The price is $50? That can't be right. [=that must be wrong]价格是50美元?这不可能。
4
a : to have permission to (do something)可以(表允许) -
You can do it tomorrow if you like.如果愿意的话你可以明天做。
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“Can I leave now?” “No, you can't.”“我现在可以走了吗?”“不可以。”
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You can't leave until you finish washing the dishes.你洗完盘子才能走。
— compare may 4 b —
used in speech to make a request or suggestion用于口语,提出请求或建议 -
Can [=could] I have another cookie?我能再来块儿曲奇吗?
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Can [=could] you open the window a little more, please?您把窗稍微开大点儿行吗?
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You can sit here if you like.如果愿意,你可以坐这儿。
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If you're not sure what to do, you can always ask for help.如果不确定该做什么,你随时可以寻求帮助。
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We can leave early if you're feeling tired.如果你觉得累了,我们可以早点儿离开。
— compare may 3 5
a —
used to say what should or should not be done应该(表示某事该做或不该做) b —
used in angry speech to tell someone to do something用于生气时告诉某人做某事 6
a —
used to describe the way a person sometimes behaves有时会,可能(用于描述人有时表现出的行为) b —
used to describe something that sometimes or often happens常常(用于描述有时或常发生的事情) Usage用法 Could is used as the past tense of can to describe an ability that someone had in the past or to say that something was possible in the past.*could是can的过去式,用于描述过去的能力或可能性。 -
I could run fast when I was young, but I can't run fast now.我小时候跑得很快,但现在不行了。
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It used to be that you could drive for miles here without seeing another person, but now there are houses and people everywhere.这地方以前开车几英里都看不到一个人,但现在到处都是房子和人。
To describe a specific occurrence in the past, use was/were able to instead of could.描述过去发生的某一具体事件时,用was/were able to,不用could。 In the future tense, will be able to is used.在将来时中用will be able to。 -
If you keep practicing, you'll be able to play the piano someday.如果坚持练习,你总有一天能学会弹钢琴的。
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She believes that someday people will be able to vote at home on their computers.她相信有朝一日人们将可以在家里用电脑进行投票选举。
Can can be used to suggest something that might happen in the future.*can可用于指将来可能发生的某事。
no can do
informal + humorous
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used in speech to say that you cannot do something that you have been asked or told to do(用于口语,表示不能按要求或吩咐做某事)不行,不能,干不了 plural cans
plural cans
Learner's definition of CAN
[count]
1
a : a closed metal container that is usually shaped like a cylinder and that holds food or drink罐;听 b : the food or drink that is in a can罐中的食物(或饮料) 2
a : a metal or plastic container that has a removable top and that is used for holding liquid, trash, etc.(装液体、垃圾等带盖的)金属容器,塑料容器
can of worms
: a complicated situation in which doing something to correct a problem leads to many more problems麻烦事;棘手的问题 -
We thought the project would be simple, but it turned out to be a real can of worms.我们原以为那个项目很简单,后来却发现很棘手。
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Our boss is reluctant to change the policy now because she doesn't want to open a can of worms.我们老板现在不愿意改变政策,因为她不想惹上一堆麻烦。
carry the can
British, informal
: to accept blame or responsibility for something that you did not cause替别人承担责任;代人受过;背黑锅 -
He made the error, but she was left to carry the can.他犯了错,却留她来承担责任。
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Taxpayers will carry the can for the renovations.纳税人将为这些翻修工程埋单。
in the can
of a film, recording, etc.
: completed and ready to be released(电影、唱片等)已拍摄好的,录制完毕的,准备发行的
the can
US, informal 1
: the part of the body that you sit on : buttocks屁股 2
a : a room with a toilet : bathroom厕所;卫生间 — canful
/ˈkænˌfʊl/ noun, plural canfuls cans; canned; canning
cans; canned; canning
Learner's definition of CAN
[+ object]
1
chiefly US : to preserve food by putting it in a metal or glass container把食品装罐保存 2
US, informal : to dismiss (someone) from a job炒(某人)鱿鱼;让卷铺盖走人 3
US, informal : to stop or end (something)停止,结束(某事)
— canner
noun, plural canners [count]
— canning
noun [noncount]