He is weak, so he is not good at sports.

He is weak for his age.

He is good at making a living, always overcoming difficulties.

His strength was reflected in his words.

His only weakness is his resistance to sweets.

Atsuyoshi, how was your day today?

The strong warrior defeated the enemy.

Tsuyoshi always expresses the strongest opinion in class.

He has a weak body and gets sick easily.

He finished the job in slightly less than an hour.