短语词组短语stagnate e 淤塞stagnate v 停滞Stagnate phase 停滞期stiff stagnate 板滞stagnate development 滞后发展stagnate membrane 滞流膜层development stagnate 发展滞后zh ì stagnate 滞stagnate energy 宣肃升降 返回 stagnate