corrugate ['kɒrʊgeɪt]

以下由轻松背单词网站提供

vt. 使起皱；成波状 adj. 起皱的；波状的 vi. 起皱；缩成皱状

fold into ridges;

He corrugated his brows in thought. 他在沉思中皱起眉头。
His brow corrugated with the effort of thinking. 他皱着眉头用心地思考。