English主要词典
toughen
Universal Words
(sb) (up)
1 to become or make sth stronger, so that it is not easily cut, broken, etc:
[VN] toughened glass [also V]
2 [VN] to make sth such as laws or rules stricter:
The government is considering toughening up the law on censorship.
3 [VN] to make sb stronger and more able to deal with difficult situations:
His parents sent him away to school to toughen him up.
