🔑twentyBrE/ˈtwenti/NAmE/ˈtwenti/🔑number20二十nounthe twenties[pl.]numbers, yearsortemperaturesfrom20to29二十几;二十年代▸twen·ti·eth🔑BrE/ˈtwentiəθ/NAmE/ˈtwentiəθ/ordinal number, nounHELP There are examples of how to use ordinal numbers at the entry for fifth.序数词用法示例见 fifth 条。●inyourˈtwentiesbetweentheagesof20and29 * 20 多岁