It's a school bag.

它是一个书包。

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He wrote: 'a school bag is an essential item for all our students.

他写道：“书包是所有学生必须配备的。”

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I once went to school with book in my hand for I did not have a school bag, somehow the book was lost and fortunately a classmate found it and turned it over to Mr Zhang.

有一次，我没书包，就用手拿着书去上学，不知怎么书就丢了，幸亏同学捡到交给了张老师。

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The performance is noteworthy in a back-to-school season that has been a mixed bag for teen apparel retailers, some of which have struggled with lackluster merchandise choices in their efforts to stimulate traffic.

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Teams might talk about whether they want to cut that down from the size of a standard school backpack to something such as a laptop carrying bag.

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It is important for college students to remember that some of their classmates from high school may not be carrying a book bag across campus, but a rifle across a battlefield far away from home.

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