key

1. N-COUNT A key is a specially shaped piece of metal that you place in a lock and turn in order to open or lock a door, or to start or stop the engine of a vehicle. 钥匙

They put the key in the door and entered. 他们用钥匙开了门然后走了进去。

2. N-COUNT The keys on a computer keyboard or typewriter are the buttons that you press in order to operate it. 键

Finally, press the Delete key. 最后，按删除键。

3. N-COUNT The keys of a piano or organ are the long narrow pieces of wood or plastic that you press in order to play it. 琴键

...the black and white keys on a piano keyboard. …一架钢琴键盘上的黑白琴键。

4. N-VAR In music, a key is a scale of musical notes that starts on one specific note. 调

...the key of A minor. …A小调。

5. N-COUNT The key on a map or diagram or in a technical book is a list of the symbols or abbreviations used and their meanings. 略语记号

You will find a key at the front of the book. 你在书的前面会看到一个略语记号。

6. ADJ The key person or thing in a group is the most important one. 关键的[ADJ n]

He is expected to be the key witness at the trial. 预计他将成为审判时的关键证人。

7. N-COUNT The key to a desirable situation or result is the way in which it can be achieved. 关键

The key to success is to be ready from the start. 成功的关键是从一开始就做好准备。

8. N-COUNT A key is a small low island or reef, especially one in the Gulf of Mexico. (尤指墨西哥湾内的) 低岛; 礁

...the Florida Keys. …佛罗里达群岛。

9. V to scratch the paintwork of (a car) with a key 用钥匙刮(汽车的)漆面