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He took his key and went upstairs, unlocking the door of his room.
他拿了钥匙就上了楼，打开他房间的门。
youdao
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Accepting things as they are can be the key for unlocking the door to happiness.
接受事物，因为它们可以是开启幸福之门的钥匙。
youdao
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Father is unlocking the door.
父亲在开门。
youdao
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Father is unlocking the door.
父亲在开门。
youdao