vi.

1. 走得慢；落后；延迟
   Some of the runners in the race began to lag.

   参加比赛的运动员中有一些开始落后了。

   The children were tired and lagged behind their parents.

   孩子们累了，落在了他们的父母亲身后。

2. 【物】滞缓
3. 减弱，衰退
   Production lagged and unemployment rose.

   生产减少，失业增加。

vt.

1. 落后于；滞后于
   The child lags his peers in intellectual development.

   这孩子在智力发展方面比同龄人迟缓。

n.

1. 落后；滞后；衰退[C][U]
   There was a long lag in forwarding mail to us.

   邮件转送我们前已有好长一段时间的耽搁。

2. 落后程度；迟滞量[C][U]
3. 落后者[C]
4. （事件或现象之间的）间歇[the S]
   There is a time lag of about 10 years.

   有大约十年时间的间歇。

n.[C]

1. 桶板
2. （锅炉等的）外套；绝热层
   the lag of a cylinder

   汽缸保温套

vt.

1. 给……装外套（或绝热层）
   If you lag your hot water tank, you'll save money on your fuel bills.

   如果你给热水箱装上外套，你就可以少付燃料费帐了。

v.

1. fall behind; follow after a delay.
2. N. Amer. another term for string (in sense ⁶).

n.

v.

n.