英语单词primary, major, prime 和main 虽然各自有不同的含义，但它们都有“主要的、首要的”意思。在本期节目里我们将着重讲解在使用这几个近义词时的场合区分和语境对词语替换产生的影响。 谢谢Hang Xiong 同学，她想知道四个英语单词 primary、major、prime 和 main 的 ...

Formula One is one of the most high-speed, high-tech and high-pressure sports with hundreds of millions of Dollars of prize money on the line in decisions which need to be made in hundredths of ...