1.在本单元中我学到了美国梦的概念： The American Dream is many people around the world ha...

1. mediators斡旋者 the United Nations联合国 制定 work out be acceptable to sb...

1.预言 prediction, foreseeing 严重的severe As the scientist's prediction, the...

1.预言 prediction, foreseeing 严重的severe As the scientist's prediction, th...