overcoat ['əuvəkəut] n.1.外套,大衣2.保护层,护膜3.[美国俚语]降落伞vt.给(表面)加外层涂料(或油漆等)[亦称作overcoating]例句1.My overcoat would not wear out.我的外套很耐穿.2.You look great i...