比我的初中学校大三倍用英语怎么说

"Three times larger than my junior high school" 可以用英文表达为 "Three times bigger than my junior high school"。

其中 "larger" 和 "bigger" 都可以用来表示 "比...大"。但是，"larger" 更常用于表示面积，而 "bigger" 更常用于表示体积或尺寸。

例如：

My new house is three times larger than my old one. (我的新房子比旧房子大三倍。)
This car is three times bigger than my old one. (这辆车比我的旧车大三倍。)

"three times" 表示"三倍"，可以用来修饰后面的名词，如 bigger, larger, smaller, smaller 等。

例如:

This cake is three times sweeter than that one. (这块蛋糕比那块甜三倍。)
This math problem is three times harder than the last one. (这道数学题比上一道难三倍。)