有热情；有兴趣warm-hearted; enthusiastic

• 热心工作

  be enthusiastic about one's work

• 热心新的设计

  be enthusiastic about the new design

• 他对社会工作很热心。

  He is very earnest about taking part in community work.

• 热心的辩护者

  ardent defender

• 他是个热心研究科学的人。

  He's dedicated to scientific research.

• 他对此并不热心。

  He's really not keen about this.