Definition
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key
A key is a small metal instrument used to open or close a lock.
钥匙是一种用于打开或关闭锁的小金属工具。
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I lost my house key yesterday.
我昨天丢了我的房子钥匙。
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Make sure to bring the key before you leave.
离开之前确保带上钥匙。
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He turned the key in the ignition to start the car.
他在点火器中转动钥匙来启动汽车。