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1·Months of walking barefoot had toughened his feet.

数月的赤脚行走已使他的双脚变得坚硬。《柯林斯英汉双解大词典》

2·This set is of '. ' toughened '.

这是钢化玻璃的，不易碎。

3·I wanted something bolder and toughened up.

我想了一些大胆和增韧。

4·The situation toughened up in that country.

那个国家的形势更加恶化。

5·He toughened his muscles by doing exercises.

他通过锻炼使肌肉健壮。

6·America has toughened its approach to China recently.

最近美国对中国态度强硬。

7·They have toughened things up recently at the school.

最近他们在学校里把事情弄得很僵了。

8·Lampshade material:5MM toughened glass surface, bottom outlet.

面罩材质：5mm钢化玻璃面板，底部出线。

9·The enclosure is made of toughened glass with well impulsion-withs.

钢化玻璃罩，具有较强的抗冲击能力，并有红，黄。

10·Working with other agencies, we have toughened our rules and oversight.

与其他机构的工作，我们有我们的规则增韧和监督。

(1)toughened glass钢化玻璃