take (great) pains to (do something)
to try very hard to do something.
We took great pains to insure that no one felt left out.
Related vocabulary: go to great lengths to do something
英语词组固定搭配大全包含18674条英汉双解词组，基本涵盖了全部常用英文词组、短语的翻译及用法，是英语学习的有利工具。