tortuous
/ˈtɔ:tʃuəs; `tɔrtʃʊəs/ adj
1 full of twists and turns 弯弯曲曲的
followed a tortuous road down the mountainside 顺著蜿蜒的路下山.
2 (fig usu derog 比喻, 通常作贬义) (of a policy, etc) not straightforward; devious （指政策等）不直接阐明的, 含混不清的
a tortuous argument 含糊其辞的论据
tortuous logic 费解的逻辑.