work your guts out
US /wɜrk yʊər ɡʌts aʊt/
UK /wɜrk yʊər ɡʌts aʊt/

成語
1.
拼命工作, 努力工作
to work extremely hard
範例:
•
I had to work my guts out to finish the project on time.
我不得不拼命工作才能按時完成項目。
•
She's been working her guts out all week to prepare for the presentation.
她這週一直在拼命工作,為演示做準備。
在 Lingoland 學習這個單詞