/læg ||; læg/verb [I] (lagging;lagged)lag (behind) (sb/sth) to move or develop more slowly than sb/sth 落后: James has missed a lot of classes and is lagging behind the others at school.詹姆斯脱了许多课，功课就落在别人后面。
lag²
/læg ||; læg/(also ˈtime lag) noun [C] a period of time between two events; a delay （两件事之间的）时间间隔，延搁 ☞ Look at jet lag. 参看jet lag。