chip in (something)
to pay for part of something with other people.
They each chipped in $50 to take their parents out to dinner at a fine restaurant.
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。