名词
中文翻译：Unknown
同义词：
['bag', 'briefcase', 'suitcase', 'backpack']
例句：
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1. She carried her laptop in a portable backpack.
她用一个便携式背包带着笔记本电脑。
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2. He packed his bags for the trip to Paris.
他打包准备去巴黎的旅行。
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3. The portapack is designed to fit easily into most carry-on luggage compartments.
这个便携包设计得可以很容易地放入大多数随身行李舱。