做某事用英语短语怎么说

To do something in Engpsh, you can say "to undertake" or "to embark on" the task. For example:

I've decided to undertake a new project at work.
We're planning to embark on a trip to Europe next summer.

Other phrases you might use include "to engage in," "to tackle," or "to pursue" something. For example:

I'm going to engage in some volunteer work this weekend.
She's eager to tackle the mountain of paperwork on her desk.
He's been pursuing a degree in computer science for the past few years.

I hope this helps! Let me know if you have any other questions.