旅行确实能开阔你的视野。

Traveling certainly ___broadens ___your ___horizons.

总体而言，我认为这次会议是成功的，无疑开阔了我的视野。

Overall, I can say the conference was a success and definitely ___broadened ___my ___horizons.

学习一门新语言将拓宽你的视野。

Learning a new language will ___widen ___your ___horizons.