这座图书馆的藏书规模展示了它在知识覆盖上的广泛性。

The ___expansiveness of this library's collection demonstrates its wide coverage of knowledge.

他的开朗热情让新同事很快就融入了团队。

His ___expansiveness helped the new colleague adjust to the team quickly.

她谈论旅行经历时的滔滔不绝显示出她对冒险的热爱。

Her ___expansiveness when talking about her travel experiences shows her love for adventure.