使困难的英文怎么说

英语自学网

使困难的英文：
toughen
参考例句：

A difficult weld
困难的熔接

The Budget gap
预算困难

Grasp the nettle
毅然面对[解决]困难

Be in trouble; be in the doghouse;in hot water
处于困难或危险中

insurmountable difficulty
不可克服的困难

To bear hard upon;press.
使痛苦不堪对某人施加困难；逼迫

The disabled form a special social group in straitened circumstances
残疾人是一个特殊而困难的社会群体。

to extricate oneself from difficulties
把自己从困难中解脱出来

A recurrent problem [difficulty]
反复地发生的问题[困难]

We had great difficulty in breathing, for the air was thin.
空气稀薄，我们呼吸非常困难。toughen是什么意思：
vt.
vi. (使)变坚韧,(使)变顽固,使困难

He needs a neat diet and plenty of hard exercise to toughen him up.
他需肉类饮食和大运动量的艰苦锻炼使自己强健起来。

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。

The city council is determined to toughen up the fight against crime.
市政会议决心增强与犯罪作斗争的力度。

Reinforced concrete and special trusses have toughened large buildings, but mechanisms that actually reduce the shake from a quake are still relatively new.
钢筋混凝土和特殊的桁架已使大型建筑物更坚固，但真正能减轻大楼在地震时摇晃幅度的机械装置，倒是近来才出现的。

toughened safety glass, whether or not shaped (incl. unframed glass for motor vehicle parts)
强化安全玻璃,不论是否成形（包括作为机动车部件的未镶框玻璃）