粮食价格飞涨致贫困人口增加 BBC News with Jim Lee. The United States government is giving $25 million this year to help political dissidents get around repression of the internet in autocratic countries. The American Secretary of State Hi...
今天我们要学的词组是ramp up。 Ramp是斜面、斜坡，也指登机的梯子。作为动词，ramp up有加强、增加的意思。比如加强机场保安 -- ramp up airport security. 还比如日本公司为满足市场需求而增加生产...
