当你下车时，确保你的衣服或书包不会被扶手或门碰到。
When you get off the bus, make sure that your clothing or book bags don't get caught on the handrails or the doors.
有时候如果她看见门正在打开，她就会带着书包走出走廊去看一看。
Carry that bag all over the house... and sometimes, if she looked that the door was open, she would walked out for take a look at the corridor.
基础科学丛书包括16门学术专题，每一门都是一部完整的资料书。
The Basic Science Series includes 16 scientific topics, each of which is a complete information book.
我的书包在门后边。
我的书包在门后边。
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