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。
Then grow some tomatoes in one box which has plant food in the soil and some in another box which doesn't.
然后,在一个箱子里种一些西红柿,里面的土有养料,而在另一个箱子里也种一些,但里面的土没有养料。