broaden

The narrow river begins to broaden as it flows closer to the sea.

(Chinese) 这条窄窄的河流在流近大海时开始变宽。

The government decided to broaden the highway to accommodate more traffic.

(Chinese) 政府决定拓宽这条公路，以容纳更多的交通流量。

Traveling to different continents can broaden your cultural perspective significantly.

(Chinese) 去不同的大洲旅行可以显著拓宽你的文化视野。

The university encourages students to take elective courses to broaden their knowledge base.

(Chinese) 大学鼓励学生选修课程以拓宽他们的知识储备。