toughened造句
British regulations are also being
toughened.
英国的规章也正在变得更加严格。
You can crack this
toughened glass, but you can't break it.
这种韧化玻璃只裂不碎.
Only by taking part in practice can the young people be
toughened and hardened into steel.
年轻人只有通过实际锻炼才能百炼成钢.