Definition
To work extremely hard to the point of exhaustion, making it impossible to continue working.
工作到緊疲不壐
I had to work till I drop to finish this project.
我必须工作到筋疲力尽才能完成这个项目。
She always works till she drops and then goes straight to bed.
她总是工作到筋疲力尽，然后直接上床睡觉。
He works till he drops every day just to provide for his family.
他每天工作到筋疲力尽，只为了养家糊口。