She furrowed her brow in concentration.

她专注地皱起了眉毛。

Her brows were furrowed, showing her worry.

她的眉头紧锁，显得很担心。

He furrowed his brow in deep concentration.

他在深思时皱起了眉头。

Her brows furrowed as she tried to solve the problem.

她在试图解决问题时皱起了眉毛。

She furrowed her eyebrows when she heard the bad news.

她听到坏消息时皱起了眉头。

He looks like he has a lot of worry, with his brows furrowed.

他看起来有很多心事，眉头紧锁。

His face furrowed with worry as he waited for the test results.

他在等待测试结果时脸上皱起了担忧的神情。

His eyebrows furrowed in concentration as he worked on the puzzle.

他在解谜时，眉毛因专注而皱起。

The old man furrowed his forehead as he tried to remember the past.

老人在试图回忆过去时皱起了额头。

The teacher furrowed her brow, trying to understand the student's question.

老师皱起了眉头，试图理解学生的问题。