His innate curiosity drives him to explore and question everything around him.

innate 由前缀 in-（表示"在...里面"）和词根 nate（来自拉丁语 natus，意为"出生"）组成，字面意思是"与生俱来的、天生的"。这个词强调某种特质从出生时就存在，不是后天获得的。