如你有兴趣,.是have a interest 还是 have interest?

如你有兴趣,.是have a interest 还是 have interest? 对…有兴趣用英语表达是 have interest in 还是have an interest in 对...有兴趣是have an interest in还是have interest in. 是have interest on还是have interest in(介词） have an interest in 还是have interest in sth. 是have interest in 还是have interested in have a compelling interest意思 have interest in后,动词是原型还是ing? have interest in have a great interest等于be insterested 求翻译：have a great interest lose interest in & have an interest in