延期的英文：
delay
extension
postpone

参考例句：

The meeting adjourned sine die.
会议无限期延期。

If it should rain tomorrow, the sports meeting would Be postponed.
要是明天下雨，比赛就延期举行。

Should the weather Be Bad, the sports meeting will Be postponed.
如果天气不好，运动会就要延期。

This is Betty. I just want to tell you that the ball for this afternoon has been put off till Friday evening.
我是贝蒂。我想告诉你下午的舞会延期到星期五晚上。

In order to hasten healing the wound is closed by suture at a later date, an event called secondary suture
为了加快愈合，在晚些时候，通过缝合将伤口闭合，这种做法，称为延期缝合。

The chairman of the bench adjourned the case until October 27.
主审法官将案件延期到10月27日审理。

To postpone or adjourn.
使…延期或休会

The meeting is put off.
会议延期了

The meeting was set back.
会议延期了。

To make further delay
再行延期

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

extension是什么意思：
n. 伸展；延长；延期；电话分机

Removed the sablotron extension in favor of the new XSLT extension.
去掉了sablotron模块，使用新的XSLT扩展模块

The greatest difference was noted in extension.
伸展测试的差异是最显著的。

addition or extension that prolongs sth
增加或延长的部分.

postpone是什么意思：
v. 使延期；延迟；把...放在后面

The match was postponed on account of the weather.
基于天气关系，比赛延期进行。

They postponed sending an answer to the request.
他们推迟了对这一请求的答复。

In the event of rain, the game will be postponed.
要是下雨，球赛就延期。