1到13要背,14到19是相应地加后缀teen(注意有些是不规则变化的）20到90多直接在整十后面加几,如85 eighty-five 54fifty-four1000是one thousand具体看下面,很简单的.1 one2 two3 three4 four5 five6 six7 seven8 eigh...