1.20用英语是twenty,音标是英 [ˈtwenti] 美 [ˈtwɛnti, ˈtwʌn-] 。
2.n.二十,二十个; 二十多岁; 二十年代; 许多,大量
3.num.二十;
4.adj.二十的;
5.Brian counted to twenty and lifted his binoculars. Elena did the same. 布赖恩数到20,举起了双筒望远镜。埃琳娜也照着做了。