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1·It happened—whether by accident or design —that the two of them were left alone after all the others had gone.

碰巧—不知是偶然还是有意安排—其他人走后，只剩下了他们两个人。《牛津词典》

2·After he leaves, I am finally left alone with an iPad.

他离开之后，我终于得以同iPad单独呆上一回了。

3·The disadvantages include elderly people being left alone to fend for themselves and farmers being unable to find workers to manage their fields.

不利因素包括老年人被单独留在家里自谋生路，农民找不到工人来管理他们的田地。

4·When left alone in the room, the students who did not know which ones would shock them clicked more pens and incurred more shocks than the students who knew what would happen.

当他们被单独留在房间时，那些不知道哪些笔会对自己产生电击的学生比那些知道将会发生什么的学生按动的笔更多，也受到更多的电击。

5·He feared for his mother, left alone on the farm.

他为独自一人留在农场的母亲担忧。《牛津词典》

6·The thought of being left alone filled her with horror.

想到被孤零零地留下，她就不寒而栗。《牛津词典》

7·A patient who is not fully conscious should never be left alone.

神志并非完全清醒的病人必须时刻有人照料。《牛津词典》

8·If the woodland is left alone, it will regenerate itself in a few years.

如果林地不受干扰，几年后，它就会得到更新。《牛津词典》

9·She's asked to be left alone but the press photographers follow her everywhere.

她要求别打扰她，但是摄影记者到处都跟着她。《牛津词典》

10·Sam felt blue and left alone.

萨姆感到忧郁，独自离开了。