名词
中文翻译：清关卡
同义词：
['permit', 'permit card']
例句：
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1.The customs officer stamped the clearance card with his seal.
海关官员用他的印章在通关卡上盖章。
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2. The company needs to provide a clearance card for each employee's travel expenses.
公司需要为每个员工的旅行费用提供一张通关卡。
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3. Without the clearance card, they couldn't enter the restricted area.
没有通关卡，他们无法进入限制区域。