in contrast和on the contrary的区别主要是：in contrast意思是：相比而言，是强调比较，凸出不同的方面；on the contrary意思是：相反，强调完全不同。例如： 1. In contrast with its surface fleet, Britain's submarine force was relatively small. 同其水面舰队相比，英国的潜艇部队规模相对较小。 2. In contrast with her sister, she is very tall. 与姐姐相比, 她个子很高. 3. You think you are clever; on the contrary, I assure that you are very foolish. 你自以为很聪明, 相反地, 我确信你很傻。 4. It's no trouble at all; on the contrary, it will be a great pleasure to help you. 根本不费事，恰恰相反，非常荣幸能帮到你。
