The metal is toughened to improve its strength.

金属被使坚韧以提高其强度。

The leather is toughened to make durable shoes.

皮革被使坚韧以制作耐用的鞋子。

The plastic is toughened to resist wear and tear.

塑料被使坚韧以抵抗磨损。

The glass is toughened to withstand high impacts.

玻璃被使坚韧以承受高冲击。

The soldiers are toughened through rigorous training.

士兵们通过严格的训练被使坚韧。

The wombat uses its toughened rear to block predators from its burrow.

袋熊用它坚硬的后部来阻挡掠食者进入它的洞穴。

Who is toughened by the fire

烈火洗礼的人

She has toughened up a lot since last year.

自去年以来她已经变得坚强多了.

Light shade is made of red toughened glass.

灯罩采用红色钢化玻璃罩.

The situation toughened up in that country.

那个国家的形势更加恶化。