have pity on (someone)
to do something out of sympathy that will help someone.
An old man begged the soldiers to have pity on him and let him go.
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。