Back breaker
n. 艰苦的工作；工作勤奋的人
🧩 词语组成解析
back
[bæk]
n. 背，背部;背面，反面;后面，后部;（椅子等的）靠背;
vt. 使后退;支持;加背书于;下赌注于;
vi. 后退;倒退;
adj. 背部的;后面的;以前的;拖欠的;
adv. 以前;向后地;
breaker
[['breikə]]
n. 断路器\\n[化] 破碎机
🗣️ 情景例句
First, we need to more public relations activities to promote understanding.
首先，我们应该更多地做公关活动以促进了解。
What is the total circulation of this newsletter.
这份新闻通讯总发行量多少？
When you rescued your trousers, did note in your back pocket? When you rescued your trousers, did you find the note was whiter than white?
当你把裤子抢救出来时，你有没有发现那张纸币已经变得比白纸还白？