今天我们要学的词是downgrade. Downgrade 动词，有降级的意思。The World Wildlife Fund has downgraded the giant panda from endangered to vulnerable. 世界野生动物基金会将大熊猫从濒危物种降级为易危物种。The International Monetary Fund Managing Director said the IMF will likely downgrade its 2016 global growth forecast. 国际货币基金组织总裁说，国际货币基金组织可能会下调2016年全球经济增长预期。好的，我们今天学习的词是 downgrade, downgrade, downgrade...