key有答案的意思吗

key有答案的意思

key
KK: []
DJ: []
n.[C]
1. 钥匙
2. 图例;题解
3. (解决问题的)线索;秘诀;答案
The detective believes the missing gun is the key to the mystery.
那侦探认为那把丢失的枪是侦破这宗疑案的线索。
4. (钢琴,打字机等的)键
5. 【音】调
The song is written in the key of D.
这首歌是用D调谱写的。
6. 关键,要害;关键人物
The quarterback was the key of their team.
那四分后卫是他们队的灵魂人物。
This is the key to world peace.
这是世界和平的关键。
vt.
1. 锁上;插上
2. 【音】为...调音
The musicians keyed their instruments just before the concert began.
乐师们在音乐会快开始前为乐器调了音。
3. 用键盘输入(信息等)[(+in/into)]
a.
1. 重要的,基本的,关键的[B]
Self-confidence is the key factor in any successful career.
自信是任何成功之道的关键因素

有的.
名词 n. 钥匙
piece of metal that opens a lock
· I turned the key and opened the door.
我转动钥匙，打开了门。
· I have a bunch of keys in my pocket.
我衣袋里有一串钥匙。

名词 n. 题解；答案
set of answers to tests, etc.