单词	第二小颚
释义	同第二小颚--下唇
随便看	service craft; water taxi; selected elevation service craft; water taxi; selected elevation {intermittent aim} service crate service cycle serviced service data service data unit service data unit integrity service data unit{=sdu} service data unit，sdu service date service de documentation étrangère et de contre-espionnage 外国情报与反谍报署 service definition service delivery system service department service department cost service dependability service depot service design package service desk serviced flat service diagram service differentiation service discipline service discovery protocol