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。
After his attempt, Campbell was disappointed to learn that his average speed had been 299 miles per hour.
比赛结束后,坎贝尔非常失望地得知他的平均时速是299英里。