con·vo·lu·tion
noun/ˌkɒnvəˈluːʃn/
/ˌkɑːnvəˈluːʃn/
[usually plural] (formal)- a thing that is very complicated and difficult to follow
错综复杂的东西；晦涩费解的事 - the bizarre convolutions of the story
那故事错综复杂的离奇情节
- the bizarre convolutions of the story
- a twist or curve, especially one of many
（尤指其中之一的）盘绕，弯曲 - the convolutions of the brain
脑回
- the convolutions of the brain
Word Originmid 16th cent.: from medieval Latin convolutio(n-), from convolvere ‘roll together’, from con- ‘together’ + volvere ‘roll’.