jiǎo​jìn​nǎo​zhī

to rack one's brains

Senses

绞尽脑汁/ 絞盡腦汁 jiǎo​jìn​nǎo​zhī to rack one's brains

to strain one's mind to the limit; to think very hard about something

References

synonym 绞尽脑汁/絞盡腦汁 费尽心思/費盡心思
synonym 挖空心思/挖空心思 绞尽脑汁/絞盡腦汁