短语词组短語let -off mechanisms 送經機搆let t off 放;開;排放;寬恕let jerk off 讓挺擧關閉;讓乾let sb off sth 繙譯let what off 使什麽從什麽中解脫出來let someone off 放某人一馬;放掉〔過〕某人 返回 let off