| 单词 | rack your brain | 
| 释义 | rackyourbraintothinkvery hard: I've beenrackingmybrainalldaybut I can'trememberhername. to think carefully about something 
 Thinking and contemplating 
 You can also find related words, phrases, and synonyms in the topics: Solving and solutions rack your brain| American Dictionaryrackyourbraintotryvery hard tothinkof orremembersomething: I’ve beenrackingmybrainalldaytryingtorememberhername.  | 
	
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