*un·der·line/ˏʌndə`laɪn; ˌʌndəˈlaɪn/ v [T] 1 to draw a line under a word 在〔单词〕下面划线 2 to show or emphasize that something is important 表明; 强调: This latest accident underlines the need for an urgent review of safety procedures. 最近发生的事故更加显示出有必要立刻重新评估安全措施。