延的英文：
to prolong
to extend
to delay

参考例句：
  • They extended her visa.
    他们延长了她签证的有效期限。
  • The lorry drivers' strike has put back our deliveries by over a month.
    因卡车司机罢工,我们的交货日期延误了一个多月.
  • If the date of expiry happens to be a holiday, the validity is automatically extended to the next working day.
    假如议付满期日是节假日，它就可以自动延长到第一个工作日。
  • Extra-inning
    延长局
  • To induce good luck
    延祥纳福
  • OBstructed my progress.
    延缓了我的进步
  • To wrangle and rebuke in the presence of the emperor
    延争面折
  • It won' t hurt to postpone the meeting.
    不妨把开会时间往後延.。
  • He protracted/prolonged his visit
    他延长了访问时间。
  • The meeting lapped over into lunchtime.
    会议延长到午饭时分。

prolong是什么意思：
v. 延长，拖延，延期
  • Hospitalization may be prolonged.
    住院期可能延长。
  • addition or extension that prolongs sth
    增加或延长的部分.
  • Prolonged negotiation was not desirable.
    拖长了的谈判并不是大家所想要的。

extend是什么意思：
v. 延长；延伸；扩大；延续；伸，伸出
  • This will extend the life of the drive.
    这样会延长驱动装置的寿命。
  • Extended consciousness was his line.
    延展清醒意识是他的本行。
  • They extended their citizenship cautiously but steadily.
    他们慎重而稳步地扩大授与公民权的范围。

delay是什么意思：
n. 耽搁，延期，推迟，延缓
v. （使）耽搁，延期，推迟，延缓
  • Intended to delay.
    有意拖延的
  • loss and damage or delay of goods.
    贷物的损失、损坏或交付延误。
  • Desires are nourished by delays
    渴望越久的就越希望得到

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