自2010年至今的四级考试中， 共出现过 次
自2010年至今的六级考试中， 共出现过 次
N-COUNT 基础；根基；底部 The base of something is its lowest edge or part.
There was a cycle path running along this side of the wall, right at its base...
Line the base and sides of a 20cm deep round cake tin with paper.
N-COUNT 基部；相连处；连接处 The base of something is the lowest part of it, where it is attached to something else.
The surgeon placed catheters through the veins and arteries near the base of the head.
N-COUNT 底；底部；底面 The base of an object such as a box or vase is the lower surface of it that touches the surface it rests on.
Remove from the heat and plunge the base of the pan into a bowl of very cold water.
N-COUNT 底部；基座 The base of an object that has several sections and that rests on a surface is the lower section of it.
The mattress is best on a solid bed base...
The clock stands on an oval marble base, enclosed by a glass dome.
N-COUNT 基层；底层 A base is a layer of something which will have another layer added to it.
Spoon the mixture on to the biscuit base and cook in a preheated oven...
On many modern wooden boats, epoxy coatings will have been used as a base for varnishing.
N-COUNT 出发点；起点；基础 A position or thing that is a base for something is one from which that thing can be developed or achieved.
The post will give him a powerful political base from which to challenge the Kremlin...
The family base was crucial to my development.
VERB 以…为基础 If you base one thing on another thing, the first thing develops from the second thing.
He based his conclusions on the evidence given by the captured prisoners.
N-COUNT （公司的）客户基础，主要（客户）群体 A company's client base or customer base is the group of regular clients or customers that the company gets most of its income from.
The company has been expanding its customer base using trade magazine advertising.
N-COUNT （军事）基地 A military base is a place which part of the armed forces works from.
Gunfire was heard at an army base close to the airport.
...a massive air base in eastern Saudi Arabia.
N-COUNT （工作或生活的）据点，基地 Your base is the main place where you work, stay, or live.
For most of the spring and early summer her base was her home in Scotland.
N-COUNT （活动的）地点，中心，大本营 If a place is a base for a certain activity, the activity can be carried out at that place or from that place.
The two hotel-restaurants are attractive bases from which to explore southeast Tuscany...
Los Angeles was still my financial base. I was still doing business there.
N-COUNT 基础成分；主要成分；主料 The base of a substance such as paint or food is the main ingredient of it, to which other substances can be added.
Drain off any excess marinade and use it as a base for a pouring sauce...
Oils may be mixed with a base oil and massaged into the skin.
N-COUNT （数字进位制中的）基数 A base is a system of counting and expressing numbers. The decimal system uses base 10, and the binary system uses base 2.
N-COUNT （棒球、垒球、圆场棒球等的）垒 A base in baseball, softball, or rounders is one of the places at each corner of the square on the pitch.
ADJ-GRADED 卑鄙的；下流的；无耻的 Base behaviour is behaviour that is immoral or dishonest.
Love has the power to overcome the baser emotions.
PHRASE 完全错误；大错特错 If you say that someone is off base, you mean that they are wrong.
Am I wrong? Am I way off base? Because I want you to set me straight if you think I'm wrong.
PHRASE （尤指在近期没有联系的情况下与某人）取得联系 If you communicate with someone, especially someone you have not communicated with recently, you can say that you touch base with them.
Being there gave me a chance to touch base with three friends whom I had not seen for a year.
PHRASE 面面俱到；应付各种情况 If someone touches all the bases or covers the bases, they deal with everyone or everything involved in a situation.
He has managed to touch all the bases necessary, and trade goes on...
The boss covers all bases when he sets up a job.