受过重击的牙齿可能会变色。A tooth which has been hit hard may discolour.有些昆虫可以变色.Some insects can change colour.风云变色.The current political situation is changeable....
People should wake up to the fact that people with disabilities have got a vote as well.人们应该认识到残疾人同样也享有投票权。We wake up to find that we were dear to each other.我们醒了,却知道我们原是相亲相爱的.Corporate America is starting to wake up to ...