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。
My schoolbag has helped me a lot in my study.
我的书包已经帮了我很多在我的书房里。