ravel
verb formal uk/ˈræv.əl/ us/ˈræv.əl/ -ll- or -l-
(SEPARATE)
[ T ] (also ravel something out)解开（线团等）
to separate a knot, mass of threads, etc. into a single thread or threads
It took Daisy a long time to ravel out all the wool. 黛西花了很长时间才把所有的毛线解开。
(CONFUSE)
[ I or T ] (also ravel something up)使…更迷惑;使…更复杂
to become or to make someone or something become more confused
Mark's interference merely ravelled things further. 马克的介入只是让事情更复杂了。