VERB
(因恼怒、担心、困惑、全神贯注等而)皱眉，蹙额
When someone frowns, their eyebrows become drawn together, because they are annoyed, worried, or puzzled, or because they are concentrating.
例句
Nancy shook her head, frowning...
南希摇了摇头，皱着眉头。
He frowned at her anxiously.
他不安地朝她皱了皱眉。