keep [sb.]/[sth.] in check

释义：“保持对……的约束”，一般在留学文书中形容克服某个自身缺点，或在项目中控制某项负面因素。

例句：
The news kept Wall Street in check, as traders considered their options.
He had a hard time keeping off the pounds and keeping his type 2 diabetes in check.