及物动词
不及物动词
名词
1. 落后；赶不上
If one thing or person lags behind another thing or person, their progress is slower than that of the other.
2. 间隔；间歇；时间差
A time lag or a lag of a particular length of time is a period of time between one event and another related event.
3. 给（屋顶、水管或水箱）装绝热层
If you lag the inside of a roof, a pipe, or a water tank, you cover it with a special material in order to prevent heat escaping from it or to prevent it from freezing.
1. the act of slowing down or falling behind
Synonym: slowdownretardation
2. one of several thin slats of wood forming the sides of a barrel or bucket
Synonym: stave
3. the time between one event, process, or period and another
e.g. meanwhile the socialists are running the government