hardening [ˈhɑrdnɪŋ]

例句:

• This can sometimes reveal a hardening or lump that signals a tumor.
  这样有时能发现硬物或肿块,这是肿瘤的信号.
  
• By hardening gold, people can then make coins and jewelry with it.
  金子被加硬后, 人们就可以用它打造硬币和珠宝.
  
• The hardening of cement is a chemical process.
  水泥的硬化就是一个化学过程.
  
• So that's literally the hardening of the arteries?
  来自NEWYORKER
• Such efforts come as views of the president are hardening.
  来自WSJ
• Last month's gang rape may be hardening such attitudes.
  来自VOA