schoolbag基本解释
n.书包
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第三人称复数：schoolbags
noun
1. a bag for carrying school books and supplies
e.g. found just the right dictionary to fit into his schoolbag
1. 书包
A schoolbag is a bag that children use to carry books and other things to and from school.
1. schoolbag
1. 书包--是顾儿白给：math book 数学书--埋死补课 | schoolbag 书包--是顾儿白给 | story-book 故事书--是多味不可(不读)
2. 数学书：story-book 英语书 | schoolbag 数学书 | math book 书包
3.
3. 书包,学校规定使用的书包：launch box便当,午餐盒 | schoolbag书包,学校规定使用的书包 | school bus 校车
