石榴裙子喜了书包网:expand和broaden有什么区别

区别不大，但是expand可以用于三位整体的体积变大。而broaden多数指平面上的变化。多说情况下基本上可以互换。

expand
v. 使...膨胀,详述,扩张
[计算机] 扩充
1. The petals of many flowers expand in the sunshine.
许多花的花瓣在阳光中绽放。

2. Our foreign trade has expanded during recent years.
近年来我们的对外贸易有所扩大。

3. Metals expand when they are heated.
金属遇热则膨胀。

4. The petals of the flowers expanded in the sunshine.
花瓣在阳光下张开了.

5. His face expanded in a smile of welcome.
他喜笑颜开地表示欢迎.

6. The guests expanded a little when they'd had a glass or two of wine.
客人们喝了一两杯酒以后, 就有说有笑了.

7. A tyre expands when you pump air into it.
轮胎一打气就鼓起来.

8. Why not try to expand your story into a novel?
你怎麽不把你的故事扩展成小说呢?
broaden
v. 变宽,伸广
1. The road broadens (out) after this bend.
经过这一弯处以后, 路就变宽了.

2. You should broaden your experience by travelling more.
你应该多到各地走走以增广见识.

3. He (ie His body) broadened out in his twenties.
他二十多岁时身躯变宽了.

4. Our country has been trying to broaden its commerce with other nations.
我国一直在努力扩大与其他国家的贸易往来。

我觉得broaden好一点，

只为得两分，不好为人师。