You will find a wide variety of tea in the market, like green tea, oolong tea, iron guanyin, etc., you might be wondering, what is the difference among them?

• 在市面上，你会看到有各式各样、琳琅满目的茶叶，像绿茶、乌龙茶、铁观音等等，或许你会很好奇，究竟它们有何不同?