We don't go around doing our own cases.
我们不会擅自去接自己的'案子。
How would we go about doing that?
我们会怎么做呢？
He wanted to go on doing chemistry all his life.
他愿继续一辈子从事化学工作。
What a user can do and how they go about doing it.
用户将做什么？他们将如何做？
But he did not know exactly how to go about doing that.
但是，他并不确切的知道如何去做这件事。
Please go on doing the same exercise.
请接着做这同一个练习。