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。
The albatross is the king of the gliders, the class of fliers which harness the air to their purpose, but must yield to its opposition.
信天翁是滑翔飞行的鸟类之王,它能自如地驾驭空气,但必须顺气流飞行。