He has had no struggles or battles to harden and toughen him.
The small boy was directed to soak his feet in salt water to toughen them.
But my dresses are high-necked, and by bathing I toughen my skin.
The best way, an the easiest an the quickest, to toughen up, is just to toughen up.
Cream spoils the flavor though it does not toughen the egg as does milk.
Soup should ...