bend over backward
US /bɛnd ˈoʊvər ˈbæk.wərd/
UK /bɛnd ˈoʊvər ˈbæk.wərd/

1.
竭尽全力, 尽力而为
to try very hard to help someone or to please them
:
•
She would always bend over backward to make her guests feel comfortable.
她总是竭尽全力让客人感到舒适。
•
The company will bend over backward to keep its best employees.
公司将竭尽全力留住最优秀的员工。