interest是兴趣的意思。
例句：
1、By that time I had lost interest in the idea.
那时我已经对此想法失去兴趣了。
2、She took no interest in the people and things around her.
她对周围的人和事毫无兴趣。
3、Just out of interest, how much did it cost?
我只是好奇问问，这个花了你多少钱？
4、Could I interest you in this model, Sir?
先生，请你瞧瞧这个型号好吗？
5、These reforms were in the best interests of local government.
这些改革对地方政府最有利。