English translation for "to break the back of sth"

完成中最困难/最大量的工作

Similar Words：

"to break loose" English translation, "to break me, pour me out and start again" English translation, "to break one’s heart" English translation, "to break open the door" English translation, "to break out of a crisis" English translation, "to break the contract" English translation, "to break the ice" English translation, "to break the journey" English translation, "to break the news" English translation, "to break the record in this event" English translation