When someone frowns, their eyebrows become drawn together, because they are annoyed, worried, or puzzled, or because they are concentrating. 皱眉
verb [vt. 及物动词] 皱眉，蹙额；皱眉对……表示不满；不同意，不许可（frown on/upon）
His forehead was bunched in a frown. 他皱紧眉头。
noun [具体名词] 皱眉，蹙额
There was a deep frown on the boy's face. 那个男孩的脸上有深皱眉的表情。
