bigger 比较大，是big大的的比较级。例句：The elephant is bigger than the house. 大象比马大。
This shirt is too small for me ，I want a bigger one!
造句：
1. We have bigger houses and smaller families, more conveniences, but less time.
我们有更大的房屋和较小的家庭，更多的方便，但更短的时间。
2. If you push the stick forward, the houses get bigger.
当你向前顶驾驶杆，房子会变大。
