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N-COUNT
（在足球中）同goalkeeper
In football, the keeper is the same as the goalkeeper.
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N-COUNT
(橄榄球中的）护球推进打法
In American football, a keeper is a play in which the quarterback keeps the ball.
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N-COUNT
（动物园的）饲养员
A keeper at a zoo is a person who takes care of the animals.
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N-COUNT
（博物馆或美术馆的）馆长，主任
The keeper of a museum or art gallery, or of one part of it, is the person who is responsible for the things in it.
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PHRASE
不是…的保姆（或管家）
If you say that you are not someone's keeper, you mean that you are not responsible for what they do or for what happens to them.
例句
'I don't know where he is,' Hughes replied. 'I'm not his keeper.'
“我不知道他在哪儿，”休斯回答说。“我又不是他的保姆。”