all by

• adv. 独自(单独；独力；自动)

all by的用法和样例：

例句

1. Her sudden resignation took us all by surprise.
   她突然辞职，我们都为之愕然。
2. He is calmest (=very calm) when he is all by himself.
   他一人独处时极为平静。
3. He bored us all by talking for hours about his new house.
   他连续几个小时大谈他的新房子，使我们大家都厌烦透了。
4. We finished the job all by ourselves.
   我们全靠自己完成了这项工作。
5. He did it all by himself!
   他独自一人做了这件事。
6. Do they live all by themselves in that big house?
   他们是不是单独住在那座大房子里？
7. He lives all by himself in that large house.
   他独自一人住在那所大房子里。