after...

start a career in (the specified profession)

开始从事（某职业）

He embarked on a new career.

他开始从事一新事业.

start or begin sth,esp a job

开始从事某事（尤指职业）

begin a new business

开始从事一项新工作

beginning author

刚开始从事写作的作家

He engaged upon a new profession.

他开始从事新的职业。

So the next time you start something,

所以下一次你开始从事某件事时，

(cause sb to)begin a career,working life,etc

（使某人）开始从事事业、工作等

The young man is settled in a trade.

这个男青年已开始从事一项事业。

After he retired from the army, he took up writing.

他从军队退役以后便开始从事写作。

He used the money to launch into a new business.

他利用这笔钱开始从事一新行业。

He gave up medicine and took to literature.

他放弃医学，开始从事文学工作。

He set himself up as a freelance engineer.

他开始从事自由职业工程师的工作。

When did you start out as a lawyer?

你是什麽时候开始从事律师这个行业?

He took up herpetology at the age of fifty.

他50岁时开始从事爬虫学。

When he left school he took up news writing.

他毕业后开始从事新闻写作。

He set up In business as an Insurance broker .

他开始从事保险经纪人的职业。

They embarked on a new enterprise.

他们开始从事一项新的企业。