相关单词近义词 rachet up 增加, 渐进, =ratc..., ratchet 棘轮临近词ratchet, ratchet-and-pawl, ratchet-gear wheel, ratchetting behavior, ratchet ring spanner, ratchet winding wheel, ratchet effect theory, ratchet type rollfeed, ratchet wrench socket, ratchet roller clutch, ratchet reversing gear 返回 ratchet down