frown

他带着困惑的皱眉看着我。

He looked at me with a puzzled ___frown.

当她听到这个消息时，一丝皱眉掠过她的脸。

A slight ___frown crossed her face when she heard the news.

许多公司不赞成员工在工作时间使用社交媒体。

Many companies ___frown ___on employees using social media during work hours.