英：[ˈtʌfn ʌp]
美：[ˈtʌfən ʌp]
toughen up如何读
toughen up是什么意思
困难，使强壮；
toughen up 例句
1 We are now up against difficulties.
我们现在正面临困难。
2 A difficulty has cropped up at work.
工作中突然出现困难。
3 The city council is determined to toughen up the against crime.
市政会议决心增强与犯罪作斗争的力度.
4 Basically he needs to toughen up a little bit.
主要是,他需要更强悍点.
5 The city council is determined to toughen up the fight against crime.
市议会决心强化打击犯罪的斗争.
6 The acrylate terminated and maleic acid terminated liquid rubbers were prepared and used to toughen UP.
合成了丙烯酸酯封端和马来酸封端两种活性端基液体橡胶,并且用于不饱和聚酯(UP)的增韧.