zeal·ous
adjective/ˈzeləs/
/ˈzeləs/
(formal)- showing great energy and enthusiasm for something, especially because you feel strongly about it
热情的；热烈的；充满激情的 - a zealous reformer
充满激情的改革者
Word Originearly 16th cent.: from a medieval Latin derivative of Latin zelus ‘zeal, jealousy’. - a zealous reformer