书包的英文怎么写

　　The schoolbag is for Mary for her new school year.

　　书包是给玛丽的新学年礼物。

　　Time to go home, please put the books into your schoolbag.

　　放学时间到了，请将书本放进书包里！

　　I only took her schoolbag home and let her go.

　　我只是把她的书包带回了家，让她去玩了。

　　The little boy had a big schoolbag on his back.

　　这个小男孩背上背着一个大书包。