「be interested in」表示某人對應做某事感到興趣或好奇，以下是一些例句：
Are you interested in learning a new language?
I'm very interested in the project.
He is interested in playing football.
I am interested in English literature.
I'm interested in exploring new cultures.
這些句子展示了「be interested in」的不同用法，包括對活動、學科、文化等方面的興趣。