Some examples of word usage: knit one's brows
1. She knit her brows in confusion when she couldn't find her keys.
彼女は鍵が見つからない時に眉をひそめた。
2. The teacher knit his brows in disapproval when the students were talking during class.
生徒たちが授業中に話しているとき、先生は眉をひそめた。
3. He knit his brows in concentration as he tried to solve the difficult puzzle.
彼は難しいパズルを解こうとして集中して眉をひそめた。
4. She knit her brows in frustration when her computer froze again.
彼女はまたコンピュータがフリーズした時にイライラして眉をひそめた。
5. The boss knit his brows in concern when he heard about the decrease in sales.
売り上げの減少を知った時、上司は心配して眉をひそめた。
6. The old man knit his brows in thought as he tried to remember where he had put his glasses.
老人は眼鏡をどこに置いたかを思い出そうとして眉をひそめた。