all by himself例句
- He did it all by himself!
他独自一人做了这件事。
- That boy is in a world all by himself. He never knows what is happening around him.
那男孩总是只顾自己，从不知道周围发生的事情。
- He lives all by himself in that large house.
他独自一人住在那所大房子里。
- He is calmest (=very calm) when he is all by himself.
他一人独处时极为平静。
