broaden

动词 broaden:

1. make broader
2. extend in scope or range or area
   同义词：widen, extend
3. vary in order to spread risk or to expand
   同义词：diversify, branch out
4. become broader

1. 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。
2. He (ie His body) broadened out in his twenties.
   他二十多岁时身躯变宽了。
3. You should broaden your experience by travelling more.
   你应该多到各地走走以增广见识。
4. The road broadens (out) after this bend.
   经过这一弯处以後，路就变宽了。

broad.en

v.tr.intr.（及物动词和不及物动词）
broad.ened,broad.en.ing,broad.ens
To make or become broad or broader.
使宽或变得宽或更宽

【引伸】
broad.ener
n.（名词）