11、污染加倍。 12 、象50年前他们那样艰苦地工作 13、很少有人说他们有足够的空闲时间。 14、你为什么不去问问?
The pollution is doubled.
work as hard as they did 50 years ago.
People seldom say they have enough spare time.
Why don’t you go and ask? = Why not go and ask?