certain

3 ENTRIES FOUND:

¹ certain /ˈsɚtn̩/ adjective

¹ certain

/ˈsɚtn̩/

adjective

Learner's definition of CERTAIN

not used before a noun, [more certain; most certain] : not having any doubt about something : convinced or sure确信；无疑；肯定

Are you certain [=sure] you want to leave today?你真的想今天走？
I feel less than certain about it. [=I am not sure about it]这件事我不太确定。
She's certain (that) she can do the job despite her lack of experience.尽管她缺乏经验，但她确信能胜任这个工作。
I'm fairly certain that I'll be on time.我肯定会准时的。

— used with it to say that something is known to be true or correct可靠的，确定的（与it连用）

Although little is known about these ancient people, it is certain that they grew a number of crops.尽管人们对这些古代人知之甚少，但他们肯定种过许多种作物。
It's not certain [=definite] that the company will lay off workers. [=the company may lay off workers, but it also may not]公司是否会裁员尚不清楚。
It seems certain that the jury will convict him.看样子陪审团一定会判他有罪。

— used to say that something will definitely happen or that someone will definitely do something有把握的；必然的；肯定的

Before the game was half over our team's defeat was nearly certain.比赛还没进行到一半，我们队的败局就几乎已定。
Contact with the poison means certain death.接触这种毒药必死无疑。
Her victory seems certain.她似乎稳操胜券。

— often followed by to + verb常接动词不定式

As technology develops, the rates of success with the procedure are certain to improve.随着技术的进步，这道工序的成功率肯定会提高。
Health-care costs are certain [=sure] to increase in coming years.未来几年，医疗成本肯定会增加。
She is almost certain to win.她几乎已胜券在握。
He's all but certain to say no. [=he will almost surely say no]几乎可以肯定他会拒绝。

always used before a noun — used to refer to something or someone that is not named specifically某个，某些，某种（用于指未特别指明的人或事）

Each employee will receive a certain share of the profits.每位员工都将得到一定份额的利润分成。
Building even a simple bookcase takes a certain amount of skill. [=takes some skill]即便做一个简单的书柜也需要一定技巧。
Certain people are always late for dinner.某些人总会在晚饭时迟到。
On certain days there is no parking on the street.在某些特定日子，街上是不准停车的。
The new technology has certain limitations.这项新技术存在一些缺陷。
Students must fulfill certain requirements to graduate.学生们必须达到某些要求才能毕业。
She's allergic to certain [=particular] foods.她对某些食物过敏。
The contract can be extended under certain circumstances. [=in some special cases]合同在特定情况下可以延期。
To a certain extent [=up to a point] he's right.在一定程度上，他是对的。
The movie will appeal to people of a certain age. [=people who are no longer young]中年人会对这部电影感兴趣。

a certain

— used to refer to a quality that is noticed but that is difficult to explain or describe某种（显而易见却难以描述的品质）

formal — used with the name of a person you do not know某某，某位，一个叫…的人（与陌生人的姓名连用）

In 1889, a certain Mr. Kelly made a large donation to the church.*1889年，有一位凯利先生给教堂捐了一大笔钱。

: without a doubt : definitely or certainly肯定；确定；无疑

No one knows for certain what the outcome will be.谁也说不准结果将会如何。
We'll need more than an hour to get there for certain. [=for sure]我们肯定要花一个多小时才能到那儿。

: to do something or find out something so that you have no doubt about whether something is true, correct, will happen, etc.对…确认；弄清楚；弄明白

Make certain (that) you lock the door when you leave. = Make certain to lock the door when you leave.你离开时一定要把门锁好。
We must make certain [=make sure] this doesn't happen again.我们必须确保这样的事情不再发生。
She made certain she thanked each of them for coming.她确保自己向每位来宾都表达了谢意。

— sometimes + of

Make certain of your flight times [=be sure that you definitely know your flight times] before you leave for the airport.去机场之前一定要弄清楚你的航班时间。

² certain /ˈsɚtn̩/ pronoun

² certain

/ˈsɚtn̩/

pronoun

Learner's definition of CERTAIN

formal

: certain ones : particular members of a group : some某些；某些人 — + of

Certain of his assumptions are simply not true.他的某些假设是完全错误的。
We know that certain of his classmates walk to school every day.我们知道他的一些同学每天步行上学。