a feeling of energetic interest in a particular subject or activity and an eagerness to be involved in it

One of the good things about teaching young children is their enthusiasm. 教小孩子的一个好处就是他们对什么都充满了兴趣。

After the accident he lost his enthusiasm for the sport. 经历这场事故后，他对这项体育运动失去了热情。

I just can't work up (= start to feel) any enthusiasm for the whole project. 我就是对整个项目提不起一点热情。

a subject or activity that interests you very much

One of his greatest enthusiasms was yoga. 他最热衷的活动之一就是瑜伽。