- lag
 - [læɡ]
 - n. 落后;迟延;防护套;囚犯;桶板
vt. 落后于;押往监狱;加上外套
vi. 滞后;缓缓而行;蹒跚
adj. 最后的 
参考例子
           - 1.If we lag behind other nations in economy, we will be thrown into a passive position.
 - 如果我们在经济上落后于其他国家,我们就会陷于被动。
 
- 2.Alas, I fear the artillery must lag behind, but not I trust for long.
 - 唉!我担心炮兵一定要落后,但是我相信他们不会落后得太久。
 
- 3.We must achieve modernization of science and technology, otherwise we will lag behind other nations.
 - 我们必须实现科学技术现代化,否则我们要落后于其他国家。
 
英文解释
           - n.
 - 1.the act of slowing down or falling behind
 - 2.the time between one event, process, or period and another
 - 3.one of several thin slats of wood forming the sides of a barrel or bucket
 
- v.
 - 1.hang (back) or fall (behind) in movement, progress, development, etc.
 - 2.lock up or confine, in or as in a jail
 - 3.throw or pitch at a mark, as with coins
 - 4.cover with lagging to prevent heat loss
 
网络释义
               - lag
 - 延迟; 延迟,滞后; 发声延迟; 外套;
 
- Phase lag
 - 相位滞后; 相位延迟; 相位延滞; 相[位迟]滞;
 
- cultural lag
 - 文化落后; 文化失调; 文化堕距; 文化失調;
 
- lag fault
 - 残留断层; 滞后断层; 下盘逆进断层;
 
- instrument lag
 - 工具延迟; 仪表惰性,仪表滞后; 仪表滞后;