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Merriam-Webster's Advanced Learner's Dictionary

導出

base

¹ base /ˈbeɪs/ noun

plural bases

¹ base

/ˈbeɪs/

noun

plural bases

Learner's definition of BASE

[count] : the bottom or lowest part of something : the part on which something rests or is supported底部；根基；底座— usually singular通常用单数

The lamp has a heavy base.这盏灯的底座很沉。
He planted flowers around the stone's base.他沿石头的底部栽了一些花儿。
Make sure the base of the stove rests evenly on the floor.一定要确保炉子的底部平稳地放在地面上。
The climbers established a camp at the base of the mountain. = The climbers established a base camp.攀登者们在山脚扎了一个营地。

— often used figuratively常用作比喻

Although I disagreed with the book's theoretical base [=basis, foundation], I couldn't really find fault with its logic.虽然我不同意这本书的理论基础，但确实挑不出它逻辑上的毛病。
The tour was informative, thanks to the guide's broad base of knowledge.多亏导游宽广的基础知识，这次旅行很长见识。

[count] : something (such as a group of people or things) that provides support for a place, business, etc.基础；支柱— usually singular通常用单数

At one time paper mills were the industrial base for the region.造纸厂曾一度是这个地区的工业支柱。
The economic base of the village is tourism. [=tourism is the most important part of the village's economy]这个村庄的经济支柱是旅游业。
The company has a solid customer base. [=set of customers it can depend on]这家公司拥有坚实的客户基础。
The sport's fan base [=group of fans] is growing.这项运动的粉丝群在扩大。

— see also power base, tax base

[count] : a main ingredient to which other things are added to make something主要成分；底料 — usually singular通常用单数

The paint has a water base, not an oil base.这种漆是水基涂料，而不是油基涂料。
She uses chicken broth as the base of the soup.她用鸡汤来做这道汤的底料。

a [count] : the main place in which a person works or lives or a business operates基地；总部；主要场所

He uses his home as the base for his accounting business.他把自己的家作为会计业务的大本营。
The company's base is in London. = The company's base of operations is (in) London. [=the company's main offices are in London]这家公司的总部在伦敦。
The band recently returned to its home base of Chicago after three months on tour.在三个月的巡演之后，这支乐队最近返回了其位于芝加哥的大本营。

b : a place where a military force keeps supplies and where people in the military live and work军事基地

[count]

naval/military bases海军/陆军基地
the commander of the base = the base commander基地司令

[noncount]

The troops were ordered back to base.部队受命返回基地。

— see also air base

baseball : any one of the four places a runner must touch in order to score垒；垒位

[count]

He threw the ball to the wrong base.他把球掷错垒了。

[noncount]

There's a runner on base. [=there's a runner on first, second, or third base]有名跑垒员在垒上。
The batter reached base on an error by the shortstop.游击手失误，击球手趁机上垒。

— compare home plate; see also first base, second base, third base

[count] chemistry : a chemical that reacts with an acid to form a salt

◊ A base has a pH higher than 7.碱，盐基（pH值高于7）

— compare ¹acid 1, ph

[count] mathematics : a number on which a system for counting and calculating is established基数— usually singular通常用单数

Computers use a binary, or base 2, system, rather than the decimal, or base 10, system we usually use.计算机使用的是二进制，而非我们常用的十进制。

cover all the bases

also cover every base

: to do or include everything that needs to be done or included面面俱到；无所不包

The book is sometimes confusing because the writer tries too hard to cover all the bases.这本书有时令人困惑，因为作者过于追求面面俱到。
They reviewed the contract to make sure that it covered all the bases.他们把合同又看了一遍，确保没有任何遗漏。

off base

US, informal

: not correct : wrong or mistaken不对的；错误的

Her study proves that the theory is off base.她的研究证明这个理论是错误的。
It turns out that the estimates were way off base. [=very wrong]结果证明这些估计太离谱了。

: in an unprepared state措手不及的；无准备的

He was caught off base [=off guard] by the accusations. [=he was not prepared for the accusations]这些指控令他措手不及。

touch all the bases

chiefly US or touch every base

: to cover all the bases谈及所有相关事项

especially : to mention every subject or point that needs to be considered

She made sure that she touched all the bases in her report.她确保自己在报告中把问题的各个方面都谈到了。
His opening remarks at the meeting touched all the bases.他在大会的开幕词里提及了所有要点。

touch base

informal

: to meet and talk as a way of learning about recent news联系，谈论（以了解最新动态）

Let's get together for lunch next week to touch base.咱们下周一起吃午餐，聊聊近况吧。

— usually + with

He attended the conference for a chance to touch base with other people in the computer industry.为了寻找机会了解计算机行业其他人的近况，他参加了会议。

² base /ˈbeɪs/ verb

bases; based; basing

² base

/ˈbeɪs/

verb

bases; based; basing

Learner's definition of BASE

[+ object]

: to have a particular place as the main place where a person works or lives or where a business operates以…为总部（或据点、大本营）；驻扎

They are going to base their new company in Seattle.他们打算把新公司的总部设在西雅图。
The company has based itself in London.这家公司把总部设在伦敦。
Our tour group based itself in a hotel in the heart of the city.我们旅行团在市中心的一家宾馆里安顿了下来。

— often used as (be) based常用作(be) based

The company is based in London. [=the company's main offices are in London]这家公司的总部在伦敦。
The band was based in Chicago until recently.直到不久前，这支乐队的大本营还在芝加哥。
a London-based company一家总部在伦敦的公司

base on/upon

[phrasal verb]

base (something) on/upon (something)

: to form, make, or develop (something, such as an opinion, decision, or calculation) by using (something, such as information) as a basis, starting point, etc.基于；以…为基础

You've based your opinion on faulty information. = Your opinion is based on faulty information. [=the information that you used to form your opinion is wrong]你的意见是建立在错误的情报上的。
The interest rate is based on credit history. [=credit history is used to determine the interest rate]利率是根据信用记录来决定的。
The story is based on real-life events. [=the story was developed from real-life events]这个故事是以真实事件为基础的。
The island's economy is based on tourism.岛上的经济支柱是旅游业。

³ base /ˈbeɪs/ adjective

³ base

/ˈbeɪs/

adjective

Learner's definition of BASE

[also more base; most base] formal + literary baser; basest : not honest or good不诚实的；不良的；卑鄙的

base motives不良的动机
a base criminal卑鄙的罪犯

technical, of a metal : having low quality and value（金属）低质的，不值钱的

Iron is a base metal.铁是低质金属。

— basely

adverb

He acted basely.他行为卑劣。

— baseness

noun [noncount]

the baseness of his actions他行为的卑劣

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檢索以下詞典：(Mr. Ng 不推薦使用 Google 翻譯！)

最近搜尋：

base

cover all the bases

off base

touch all the bases

touch base

base on/upon

— basely

— baseness

🔍 牛津詞典
🔍 朗文詞典
🔍 劍橋詞典
🔍 柯林斯詞典
🔍 麥美倫詞典
🔍 韋氏詞典 🎯

檢索以下詞典：
(Mr. Ng 不推薦使用 Google 翻譯！)