绞尽脑汁用英语怎么说？

绞尽脑汁

例句

• I have searched my mind for a reason, but can't find one. 我绞尽脑汁寻找理由, 但是没找到。
• That maths exam I took was a regular brain drain. 绞尽脑汁的数学测验,我真是绞尽了脑汁.
• All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself. 整整一晚我辗转反侧,绞尽脑汁,想弄明白是什么原因竟能促成这个年轻人自杀.
• I worked myself into frenzy plotting ways to make him jealous. 我绞尽脑汁，处心积虑，就是为了让他嫉妒。
• I have been cudgel my brains for detainment you. However, everything is holdthe sun. 我曾绞尽脑汁想挽留住你, 可惜这一切只是徒劳.
• After the doctor knows, cudgel one's brains for recalled a way eventually. 医生知道后, 绞尽脑汁终于想出了个办法.
• His classmates were labouring with elementary algebra. 他的同学们正在绞尽脑汁地演算初等代数题.
• She began to rack her brains to remember what had happened at the nursing home. 她开始绞尽脑汁地回忆在疗养院发生的事。