rack one's brain

短语

绞尽脑汁

发音

AU

词形变化

racked one's brain racking one's brain racks one's brain 三单 racks one's brain racking one's brain 现在分词 racked one's brain 过去式 racked one's brain 过去分词

别名

rack one's brains wrack one's brain wrack one's brains

释义与例句

v.
  1. 1.

    To struggle to think of or remember something.

    绞尽脑汁

    比喻

    I have been racking my brain all day trying to think of a birthday present for her.

词源

Combination of rack (“medieval torture method”), and brain, thus meaning “to cause the mind extreme discomfort”. Variants include rack one's wit (1583) and rack one's memory, as well as cudgel one's brain / cudgel one's brains.

来源：wiktionary