名词
中文翻译：节省锁
同义词：
['thrifty lock', 'frugal lock']
例句：
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1.The thrift lock on the door is a clever way to keep the kids out of the room.
门上的节省锁是一个巧妙的方法，可以让孩子不进入房间。
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2.She bought a thrift lock for her old bicycle so it wouldn't be stolen.
她为她的旧自行车买了一个节省锁，以防被偷。
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3.The family decided to buy a thrift lock for their new home to save money on security systems.
这个家庭决定为他们的新家买一个节省锁，以节省安全系统的开支。