broaden
/ˈbrɔːdən/verb
no obj.
1- become larger in distance from side to side; widen变宽; 扩大：
her smile broadened
微笑在她脸上荡漾开来
the river slowed and broadened out slightly.
水流的速度减慢, 河面也稍微变宽了点。
1.1
- expand to encompass more people, ideas, or things变开阔; 扩大（以容纳更多的人, 观点或事物）：
her interests broadened as she grew up
随着年龄的增长她的兴趣变得更广了
with obj. he has to broaden Labour's appeal to the whole community.他不得不在整个社区扩大工党的吸引力。
短语
broaden one's horizons
- expand one's range of interests, activities, and knowledge开阔眼界; 扩大兴趣（或活动范围和知识面）。