lag

lag1
(lagged, lagging)
[no obj.]
  1. fall behind in movement, progress, or development; not keep pace with another or others
    落在后面
    they stopped to wait for one of the children who was lagging behind.
    他们停下来等落在后面的孩子。
  2. (N. Amer.). another term for string (in sense 6)
    (北美)。 同 string (义项6)
noun
  1. (亦作 time lag)a period of time between one event or phenomenon and another
    时差,时间间隔
    there was a time lag between the commission of the crime and its reporting to the police.
    作案与报警之间有一段时差。
  2. (Physics)a retardation in an electric current or movement
    (物理)相位滞后
派生
lagger
noun
语源
  1. early 16th cent. (as a noun in the sense 'hindmost person (in a game, race, etc.)', also 'dregs'): related to the dialect adjective lag (perhaps from a fanciful distortion of last, or of Scandinavian origin: compare with Norwegian dialect lagga 'go slowly')

lag2
(lagged, lagging)
  1. [with obj.](一般作 be lagged)enclose or cover (a boiler, pipes, etc.) with material that provides heat insulation
    给(锅炉、管道等)装绝热层
    [as adj. lagged]a lagged hot-water tank.
    装有绝热层的热水箱。
派生
lagger
noun
语源
  1. late 19th cent.: from earlier lag 'piece of insulating cover'

lag3
(Brit. informal)(英,非正式)
noun
  1. a person who has been frequently convicted and sent to prison
    惯犯,旧犯
    both old lags were sentenced to ten years' imprisonment.
    两惯犯都被判处10年监禁。
(lagged, lagging)
  1. [with obj.](archaic)arrest or send to prison
    (古)逮捕,投入监狱
语源
  1. late 16th cent. (as a verb in the sense 'carry off, steal'): of unknown origin. Current senses date from the 19th cent
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