发起提问 · 2021-08-20 21:27 she had to watch that train disappear towards her destination while she was left behind.依据主从句逻辑主语一致可省略主谓的原则能否改成she had to watch

发起提问 · 2021-08-20 13:15 请问老师 新概念3第59课里的第一句 People tend to amass possessions, sometimes without being aware of doing so 这个动名词为啥能做状语呀

鲜花充值 · 2021-08-20 13:13