名词
中文翻译：肩背包
同义词：
['backpack', 'shoulder baggage', 'shoulder baggage', 'shoulder baggage']
例句：
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1. Hecarried his laptop in a shoulder bag when he went to the airport.
他带着笔记本电脑去机场时，背着一个肩包。
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2.She decided to buy a new shoulder bag for her graduation party.
她决定为她的毕业派对买一个新肩包。
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3.The backpack is too heavy for me to carry all day.
这个背包太重了，我一整天都背不动。