许多大学不赞成学生用人工智能来写论文。

Many universities ___frown ___on students using AI to write their essays.

在这家图书馆里，大声交谈通常是不被赞成的。

Loud conversations are often ___frowned ___upon in this library.

公司不赞成员工在工作时间使用社交媒体。

The company ___frowns ___upon employees using social media during work hours.