bend (or lean or fall) over backward
بذل كل جهد ممكن لتحقيق شيء ما ، خصوصاً في محاولة أن نكون منصفين أو مساعدين.
She bent over backwards to help him.
I have been bending over backwards to make sure that you have a wonderful visit, and you don't even care!
The entire staff really needs to bend over backwards while the CEO is visiting our office.