toughen

['tʌfn]

v.变坚韧, 变健壮, 变顽固

例句与用法：

All this mountain climbing will toughen the boys up.

这些爬山运动会把孩子们锻炼得身强体壮。

Mentally toughened; strong-minded.

坚韧的有独到见解的; 意志坚强的

The company leader said that army life would toughen the recruits up.

连长说军队生活可以使新兵锻炼得更坚强。

词形变化：

名词: toughener | 动词过去式: toughened | 动词过去分词: toughened | 动词现在分词: toughening | 动词第三人称单数: toughens |

详细释义：

vt.vi.

1. (使)变坚韧

2. (使)变健壮

3. (使)变困难