Definition
To exhaust oneself through excessive work; to become extremely tired due to overexertion.
因过度工作而使自己精疲力竭；累垮自己。
They ran themselves into the ground to finish the project before the July deadline.
他们为了在七月截止日期前完成项目，把自己累垮了。
She ran herself into the ground studying for the exam, but still didn't do well.
她为了考试拼命学习，把自己累垮了，但还是考得不好。
He shouldn't have run himself into the ground for that pointless project.
他不该为了那个毫无意义的项目把自己累垮。