その頃には彼も大人になってるんだろうなの英語

He is approaching manhood.

He is old beyond his years.

He's on the threshold of adulthood.

He makes a fool of adults.

You are quite grown up.

As he grew up, he learned to put things in perspective.

I was already an adult then.

He has moderate views.

He holds moderate views.

Don't grow up. It's a trap!

He has an old head on young shoulders.

He is not what he used to be.

He's barely of age.

Don't grow up. It's a trap!

He's old in years, but young in spirit.

She has quite grown up.

Don't grow up to be like me.

He is old in years, but young at heart.

The boy grew up to be a great man.

He is old enough to go wherever he likes.

He is too old.

The child talks as if he were a man.

They will be accepted by their peers in adulthood.

I didn't expect to become this sort of adult...

He's advanced in years.

He cannot be young.

He is prudent, considering his youth.

Even adults can adequately enjoy those.

That is loved by everyone from children to adults.

He is scarcely twenty―hardly twenty.