extend
单词辨析：
多指在空间、时间、面积等方面延长或扩展。
Our summer vacation extended into September.
我们的暑假延至9月。
He wanted to extend his garden.
他想要扩建花园。
My farm extends as far as the river.
我的农场一直延伸到河边。
指在长度或时间上拉长或延长。
His trousers were lengthened.
他的裤子放长了。
Nights are lengthening with the coming of winter.
随着冬天的来临，夜晚渐渐变长了。
To save time is to lengthen life.
节省时间就是延长生命。
通常指时间上的延长，含超过正常限度之意。
He tried hard to prolong his mother's life.
他尽一切努力来延长母亲的生命。
The treaty has been prolonged for another 5 years.
这个条约又延长了5年。
相关例句：
Most ear lobes extend below the lower point of attachment of the ear.
大多数耳垂位于耳朵下方的较低处。
His admiration for the athlete did not extend to the point where he would follow his example in taking drugs
他对于这个运动员的崇拜还没有达到要学他吸毒的程度。
On behalf of the staff, I wish to extend our warmest welcome to you.
我谨代表全体职工，向你们表示热烈的欢迎。
The food industry was given a green light to extend the use of these chemicals
食品业获准继续使用这些化学品。
The hall porter was feeling hard done by at having to extend his shift.
酒店行李搬运工因为被迫延长当班时间而愤愤不平。
The man extended his hand: 'I'm Chuck'.
那名男子伸出手说道：“我是查克。”