名词
中文翻译：密码锁
同义词：
['password lock', 'code lock', 'pin code lock']
例句：
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1. The safe is equipped with a number lock for added security.
这个保险箱配备了一个密码锁，以增加安全性。
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2. She used her master key to unlock the door of the room.
她用她的钥匙打开了房间的门。
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3. The policeman used his number lock to open the door.
警察用他的密码锁打开门。