组合类常用词汇和套句
1、 可以在数字前用副词：almost/nearly/approximately/about/just over/over/exactly/precisely
2、用特定表达代替“数字+百分比”：如25% = 1/4 = a/one quarter of, 50% = 1/2 = half of
3、大约的表达方式：a、Approximately + 数字b、About/around + 数字c、数字 + or so
4、倍数的表达方式：Double 是两倍/大一倍Increase/decrease three times 增长/减少了三倍
