The rural workforce has been flowing in to the cities ever since the open door policy was adopted.
自从改革开放政策实施以来,农付劳动力正不断流向城市。
For him, caves have the same peculiar fascination which high mountains have for the climber.
对洞穴探险者来说,洞穴有一种特殊的魅力,就像高山对登山者有特殊魅力一样。