40岁的英文怎么写

40岁的英文forty；

从 20——99 整数几十中除twenty，thirty, forty，fifty，eighty为特殊形式外，sixty，seventy，ninety都是其个位数形式后添加后缀-ty构成。表示几十几时，在几十和个位基数词形式之间添加连字符“-”

Make it a round figure ─ say forty dollars.

凑个整数——就四十块钱吧。

At a guess, there were forty people at the party.

估计有四十人参加了聚会。

After forty years in politics I think it\'s time for me to call it a day.

从政四十年，我想现在也该退休了。

I\'ll feel much better when I\'ve had forty winks.

我打个盹就会感到好得多。

Fifty is the new forty.

四十尚未老，五十正当年。