Talks are under way to toughen trade restrictions.

加强贸易限制的会谈正在进行中。

They jab tree trunks to toughen their hands and practice squatting with other students sitting on their shoulders to build the leg strength.

他们猛击树干来锻炼双手，练习蹲坐，让其他同学坐在他们的肩膀上锻炼腿部力量。

Nevertheless, researchers have discovered that a process long known to discolor and toughen foods may also contribute to age related impairment of both cells and tissues.

然而，研究人员发现，一个长期以来众所周知的使食物变色和变硬的过程也可能与年龄相关的细胞和组织损伤有关。

This experience will toughen her.

这次经历会让他变坚韧。

It is not too late for him to toughen up.

现在采取强硬的措施尚未为时过晚。

Best of toughen time is at the afternoon.

最好的锻炼时间是在下午。

My father tried to teach me to toughen up.

我父亲试图教我变得坚强。

His parents sent him away to school to toughen him up.

他的父母把他送到学校经受锻炼。

But if you're going to work in Brooklyn, you got to toughen up.

但如果你想在布鲁克林工作，就得坚强起来。

Before you start packing up what's left it's time to toughen up.

在你开始打包剩余物品时，你得更严格地把关。

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。

Salt and acid toughen the skins, which can making cooking time much longer.

加盐和酸能强化豆皮，可以使烹饪的时间更长。

The new dual-functional toughening agent SWR -3c was used to toughen nylon (PA) 6.

采用新型双官能化增韧剂swr—3c对尼龙(PA) 6进行增韧研究。

But those who are easier graders than average will never feel guilty and toughen up.

而那些评分本来就比平均标准松的，根本不会觉得内疚，不会因此更严格。

This experience will also toughen you up and you will become a more courageous person.

这段经历也会让你更加坚强，变成更加勇敢的人。

This began the whole practice of training actors to toughen them up for roles as soldiers.

这部电影也开创了对扮演士兵的演员进行军事化训练的先河。

But it must meet the targets in its five-year plan and toughen those policies in future plans.

但还必须实现其五年计划中的目标，并在今后的计划中收紧这些政策。

To grow up is to experiment, to toughen yourself up through erring, and finally to become wise.

人的成长是一个不断尝试，经历磨炼和失误，最终变得聪明的过程。

Continue using commercial insecticides and you're just helping cockroaches toughen up their stock.

如果继续使用市面上卖的一般杀虫剂，那你就只是在帮小强增强它们生存能力。

Members of the Senate also are pushing to give the White House new tools to toughen policy toward China.

而参议院也有议员提倡给予白宫新的工具来强化对华政策。

South Korea says it will increase its troop levels on Yeonpyeong and toughen up its rules of engagement.

韩国表示将会增加延坪岛的兵力并加强管制力度。

To subject (glass or metal) to a process of heating and slow cooling in order to toughen and reduce brittleness.

给(玻璃或金属)加热并使之慢慢冷却以使之变硬并减少易碎性。

Their methods include the use of strips of ion-exchanging plastic, braided with polystyrene to toughen them up....

他们的方法包括利用聚苯乙烯加固的离子交换塑料带。