表示“数十”、“数百”、“数千”等不确定数目,英语在ten/dozen/score/hundred/thousand/million/billion等数词的复数形式后加of 构成,例如: a) tens of(20—99);dozens of(24—99); scores of(40-99) 数十/几十/好几十 b) hundreds of (200—999);several hundred ...