by themselves的用法和樣例：
例句
- They couldn't, even if they would, get out of trouble by themselves.
即使他們想(擺脫), 也無法獨立擺脫困難。
- When you walk into the room, the lights turn on by themselves.
每當你走入這房間，電燈自己就打開。
- They went to Suao by themselves.
他們自己去蘇澳。
- The children seem to be totally incapable of working quietly by themselves.
這些孩子似乎完全不能安靜地自己做功課。
- They finished the work by themselves.
他們自己完成了這項工作。
- John and Mary were by themselves.
約翰和瑪麗兩人單獨在一個地方。
- Do they live all by themselves in that big house?
他們是不是單獨住在那座大房子里？
以上內容獨家創作，受著作權保護，侵權必究
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