回答

・acquire expertise
・become an expert

「獲得專業知識」可以用英語 acquire expertise 或 become an expert 來表達。

It's a good idea to acquire expertise as it will be useful in the future.
（獲得專業知識，是個好主意，因為它將在未來發揮作用。）

In the future, freelancers can earn more money than company employees, so it's better to become an expert than a generalist.
（未來，自由工作者會比上班族賺更多的錢，所以最好成為尃家而不是通才。）

有幫助｜0