例句與造句

1. Today the common average is 180 days
   現(xiàn)在的一般平均學(xué)年時間是180天。
2. Times have not changed much , today the common average is 180 days
   時間并沒很大的變化，今天的平均時間為180天。
3. It's difficult to find common average in a sentence. 用common average造句挺難的