他做完数学后，他接着去做物理。(做完一件事，去做另一件事)。

After he had finished his maths, he went on to do his physics.

youdao

他做完数学后，他接着去做物理。(做完一件事，去做另一件事)。

After he had finished his maths, he went on to do his physics.

youdao