重 点

extend

/ɪkˈstend/
If you say that something, usually something large, extends for a particular distance or extends from one place to another, you are indicating its size or position. 延伸

verb [vt. 及物动词] 延伸;扩大,延长;持续;包括,波及;提供,表示;伸出;使竭尽全力;对…估价;继承(面向对象语言中的一种概念)

The caves extend for some 12 miles. 这些洞穴延伸约12英里。

extend 出现在下面的课文中(提供视频、音频及笔记等可系统性学习)
Lesson 17 The longest suspension bridge in the world
ex(出) + tend(伸展) → 伸展出去 → 延长
单词造句:
网友用 “Extend” 造句精选
...a table that extends to accommodate extra guests. …一张能伸展以容纳更多客人的桌子。
The normal cyclone season extends from December to April. 正常的飓风季节从12月持续到4月。
The man extended his hand: "I'm Chuck." 这位男士伸出了他的手:“我是查克。”
This year they have introduced three new products to extend their range. 今年他们已引入了3种新产品以扩大他们的范围。
The main stem will extend to around 12 ft, if left to develop naturally. 如果让其自然生长,主干会延伸到12英尺左右。
They have extended the deadline by twenty-four hours. 他们已经将最后期限延长了24小时。
The service also extends to wrapping and delivering gifts. 这项服务还包括包装及递送礼物。
There are plans to extend the no-smoking area. 现已有扩大无烟区的计划。