He has a weak body and gets sick easily.

He finished the job in slightly less than an hour.

By looking at the age of the teeth, you can tell the lifespan of an elephant.

Considering his age, his vitality is astonishing.

His age is 40.

He always takes a timid attitude.

Because of his timid personality, he can't easily express his own opinions.

He is good at making a living, and can survive in any situation.

His only weakness is sweets.

He is always making feeble complaints.