例句與造句

1. why should that be ? what diffrence does it make
   為什么呢？這有什么關系？
2. analysis of odd-even diffrence of momet of inertia of nuclear superdeformed states in a-130 and a-150 regions
   130區和150區帶首轉動慣量的奇偶差分析
3. It's difficult to find diffrence in a sentence. 用diffrence造句挺難的