1.A be …times as much/many as B
eg. The annual rainfall of Hunan is 5 times as much as that of Sichuan.
2.A doubles/is half/triples B A是B的两倍，一半，三倍
eg. The annual rainfall of Jidda doubles that of Janta, but is only half the amount of rain Kuwait receives each year.
附一：圆盘比例型图表例： 一个圆盘显示了大学生在food, books, transportations, entertainment, clothes, unknown中的开销，它们各自占的比例依次是60%,3%,5%,10%,10%,12%，要求你描叙这个圆盘图。 描述：
The above pie chart consists of 6 segments, the largest one representing food, which accounts for 60% of the total. Clothes and entertainment each takes up 10%. 5% goes to transportation and 3% books. All the rest expenses, 12% of all ,is spend on unknown items.
…pie chart consists of…segments, the largest one representing…,which accounts for …of the total.…each takes up….…goes to….All the rest…, …of all,……. .