youngster

这个年轻人对学习表现出极大的热情。

The ___youngster showed great enthusiasm for learning.

作为一个年轻人，她在音乐方面展现了非凡的才华。

As a ___youngster, she showed remarkable talent in music.

这只小狗是这窝幼崽中最活泼的。

This puppy is the most active ___youngster in the litter.