tortuous       
adjective uk/ˈtɔː.tʃu.əs/ us/ˈtɔːr.tʃu.əs/
 弯弯曲曲的;曲折的;转弯抹角的
with many turns and changes of direction; not direct or simple
  He took a tortuous route through back streets. 他选择穿过偏僻的街道,走了一条弯弯曲曲的路线。 
 The path to peace seems at last to be clear, although it may be a long and tortuous one. 通向和平的路径好像终于清晰起来,虽然它可能是一条漫长而曲折的道路。 
 Synonym: twisty 
Compare: torturous