1.“40”的英文单词为forty,英 [ˈfɔ:ti] 美 [ˈfɔ:rti] ;
2.n,四十;四十几。
3.num,(数词)四十。
4.adj,四十的。
5.forty的复数形式: forties;
6.例句:I went through my midlife crisis about four or five years ago, when I was forty.四五年前,在我40岁的时候,我经历了中年危机。