1．手指单词：finger，英 [ˈfɪŋɡə(r)] 美 [ˈfɪŋɡər]。
2．他用手指沿杯口抹了一下。He ran his finger around the lip of the cup.
3．他用手指顺着她的下巴外缘抚摸。He traced the line of her jaw with his finger.
