名词
中文翻译：暗门
同义词：
['secret passage', 'hidden door']
例句：
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1. The old house had a secret passage that led to the basement.
这所老房子有一个秘密通道通向地下室。
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2. The thief used the secret passage to escape from the police.
小偷利用秘密通道从警察手中逃脱。
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3. The old mansion had several hidden doors that could be opened with a key.
这座老宅有几个隐藏的门，可以用钥匙打开。