Traveling can widen one's vision.

旅行可以开眼界。

Learning a new language can widen one's vision.

学习新语言能开眼界。

Reading different books helps to widen one's vision.

阅读不同的书籍有助于开眼界。

Visiting museums is a good way to widen one's vision.

参观博物馆是开眼界的好方法。

Interacting with people from different cultures can widen one's vision.

与来自不同文化的人交流可以开眼界。

Widen one's field of vision.

开眼界，拓宽视野。