🔑fortyBrE/ˈfɔːti/NAmE/ˈfɔːrti/🔑number40四十nounthe for·ties[pl.]numbers, yearsortemperaturesfrom40to49四十几;四十年代▸fortieth🔑BrE/ˈfɔːtiəθ/NAmE/ˈfɔːrtiəθ/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。●inyourfortiesbetweentheagesof40and49 * 40 多岁