v. make available; provide
v. reach outward in space
v. expand the influence of
v. open or straighten out; unbend
v. 扩充, 延伸, 伸展, 扩大
[计] 扩展
1. I need to extend the deadline for my project.
我需要延长我项目的截止日期。
2. She decided to extend her stay in the city for another week.
她决定在这个城市再待一个星期。
3. The teacher will extend the lesson to cover more topics.
老师将延长课程以涵盖更多主题。