每日短语讲解 第973期:独自一人

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今日短语：
by oneself.

独自一人；独力地

例句：
After his wife died, he lived by himself.
他的妻子过世之后，他就一人独居。
Did you do this by yourself or did someone help you?
此事你是独力完成，还是有人帮你呢？