surface with macadam表面用碎石覆盖asphalt macadam沥青碎石Macadam type bases involving successive layers of crushed rock bound with rock dust were also used.人们曾经使用“石结”基层——几层由石粉黏结在一起连续的碎石层.The construction techniques of cement treate...
What about the unfairness of life? Why do bad things happen to good people?那怎么解释人生的不公呢？为什么坏事会降临在好人头上？We tried to meet both children's needs without the appearance of favoritism or unfairness.我们尽力对两个孩子的需要都予以满足，而不显得有所...