Rack one's brains
辅助 Assistant绞尽脑汁
🧩 词语组成解析
rack
[ræk]
n. 行李架;支架;刑架;（羊、猪等带前肋的）颈脊;
vt. 使痛苦，使焦虑;剥削，榨取;用刑拘折磨;
a. 人们的；自己的
n. 智力, 脑髓\\n[法] 智能, 智囊
🗣️ 情景例句
Now, tell us something about your trip.
好，跟我们说说你的旅行。
Congratulations on the completion and opening of a new Beijing branch!
祝贺美国银行北京分行的建成和开业！
After that they pressed a piece of paper on top, and printed a whole page of a book.
然后，再把一张纸压在上面，就印出了一整页书。