• n. 落后；遲延；防護套；囚犯；桶板
• vt. 落后于；押往監(jiān)獄；加上外套
• vi. 滯后；緩緩而行；蹣跚
• adj. 最后的
• n. (Lag)人名；(俄)拉格

詞源不詳，可能來自lug,用力拖拉。引申詞義緩慢，滯后。

lag

lag: English has three distinct words lag. The verb ‘fall behind’ [16] is perhaps of Scandinavian origin (Norwegian has lagga ‘go slowly’), although a link has been suggested with the lag of fog, seg, lag, a dialect expression used in children’s games which represents an alteration of first, second, last. Lag ‘insulate’ [19] comes from an earlier noun lag ‘barrel stave’, which was also probably borrowed from a Scandinavian language (Swedish has lagg ‘stave’); the original material used for ‘lagging’ was wooden laths.

And finally the noun lag ‘prisoner’ [19] seems to have come from an earlier verb lag, which originally meant ‘steal’, and then ‘catch, imprison’; but no one knows where this came from.

lag (v.)

"fail to keep pace," 1520s, earlier as a noun meaning "last person" (1510s), later also as an adjective (1550s, as in lag-mon "last man"), all of uncertain relationship, possibly from a Scandinavian source (compare Norwegian lagga "go slowly"), or some dialectal version of last, lack, or delay. Related: Lag; lagging. The noun meaning "retardation" is from 1855. First record of lag time is from 1951.

1. There's a time lag between infection with HIV and developing AIDS.

從感染艾滋病病毒到病發(fā)有一段滯后期。

來自柯林斯例句

2. As conceit makes one lag behind, so modesty helps one make progress.

驕傲使人落后, 謙虛使人進步.

來自《簡明英漢詞典》

3. Ten minutes later, some of runners in the race began to lag.

十分鐘后, 有些參賽的人開始落后了.

來自《簡明英漢詞典》

4. I staved off jet lag with a bath and an early night.

我洗了個澡又提前睡下,免除飛行時差的反應(yīng).

來自《簡明英漢詞典》

5. There is a time lag of about fifteen years.

時間上有一段約15年的間隔.

來自《簡明英漢詞典》