这两件T恤的价格差是五美元。

The price ___difference between these two T-shirts is five dollars.

夏季和冬季之间的温度差异显著。

There is a significant ___difference in temperature between summer and winter.

他们之间的年龄差异太大，难以建立亲密的友谊。

The age ___difference between them was too large for a close friendship.