名词
中文翻译：地板通行证
同义词：
['floor pass', 'floor ticket']
例句：
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1.We need to get through the door before it closes.
我们需要在门关闭之前通过。
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2. The floor pass allows us to enter the building without a key.
地板通行证让我们无需钥匙就能进入大楼。
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3. The floor pass is valid for one hour only.
地板通行证仅有效一小时。