give (someone) a free hand
to allow someone to do whatever they think is necessary in a particular situation.
His manager had given him a free hand to make whatever changes he felt necessary. (often + 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。