Tīngdào zhège xiāoxi, tā rěnbúzhù zhòu qǐ le méitóu.
Upon hearing the news, she couldn't help but frown.
Tips
usage
皱眉头 and the shorter 皱眉 are interchangeable. Both convey displeasure, worry, or concentration. The alternative 皱起眉头 adds 起 to emphasize the action beginning.