lag/læɡ/动词（为保温而）覆盖，（为防止结冰而）给…加保温层to lag pipes给管道加保温层使入狱，逮捕缓慢移动；掉队，滞后Sales are lagging at the moment.目前的销售很不景气。/læɡ/名词（两件事之间的）间隔，延迟You have to allow for a time lag between order and delivery.订货和送货之间要有一段时间间隔。囚犯，犯人；惯犯an old lag惯犯想跟读，去练习
