延[yán] 基本解释：
新英汉大词典：
- 延[yán]
- 动词- （延长） prolong; extend; protract:
be on one's last legs; linger on in a steadily worsening condition;苟延残喘
spread;蔓延
- （向后推迟）postpone; delay:In case of rain the mass meeting will be postponed till the first fine day.大会遇雨顺延。
- （聘请） engage; send for:engage a teachers; invite teachers to school;延师
send for a doctor延医
- 名词- （姓氏） a surname:
Yan Cen延岑
以上内容来源于：《新汉英大辞典》
例句与用法：
The road extends for miles and miles.
If the roads are icy, you'd be better advised (ie it would be more prudent) to delay your departure.
How can we endeavor to prolong the brevity of human life?
The meeting may be prolonged into the evening because so many problems have to be solved tonight.
延的其他解释: