► 形容動詞熱心  [(1)ねっしん]    
meaning:  dedicate  rank: 2☆ 
彼等は
子供の
教育にとても熱心だ ⇨ They are very dedicated about education of their children
More examples:- 彼等は子供の教育に熱心だ ⇨ They’re really keen on their children’s education
 - 仏教徒はキリスト教徒のように布教に熱心でない ⇨ Buddhists are not intent on spreading their religion like Christians