two times as big as .与two times bigger区别?

two times as big as .与two times bigger区别? 关于倍数表达three times as big as...two times bigger than...上面两种表述 four times as big as 还是four times as bigger as 有没有“two times as big as.”这个词组（能不能用sizes?） in my class two times as many girls as boys. two times as much as mine和 two times as many as mine 的用法有何不同 The earth is 48times _____the moon.(A:as bigger as B:big as A is four times bigger than B 和A is four times as big as B 有 twice as much as跟two timeS as much as用法有什么不同 …times the size of 和…times as big as区别 the tower of London is two times as high as the Church tower （英语题）Their playaround is two times as ____ as ours.