让我们扩大讨论范围，把这些新观点也包含进来。

Let's ___widen the discussion to include some of these new ideas.

这门课程极大地拓宽了我对欧洲历史的认识。

This course has really ___widened my knowledge of European history.

社交媒体扩大了一些家庭中代际之间的隔阂。

Social media has ___widened the gap between generations in some families.