年纪 (nián jì): Age (Noun) — Meaning & Stroke Order

I am ten years old this year, not very old.

He is older than me, so he is my elder brother.

He is old in age, but his mindset is still young, and he enjoys trying new things.

Don't underestimate his judgment and sense of responsibility just because of his young age.

Although he is not young anymore, he still maintains a passion for learning.

Considering his age and extensive experience, this position is undoubtedly his.