1 ...Kibara find about purple tea...
2016.12 CET4 听力题
2 ...Its leaves are purple and brown...
2016.12 CET4 听力题
3 ...the drink has a purple color...
2016.12 CET4 听力题
4 ...Why have tea farmers in Kenya decided to grow purple tea...
2016.12 CET4 听力题
5 ...What do researchers say about purple tea...
2016.12 CET4 听力题
6 ...He says there are not enough buyers willing to pay more for the purple tea...
2016.12 CET4 听力题
7 ...Kibara says he has not received a higher price for his purple tea crop...
2016.12 CET4 听力题
8 ...He says the market for the tea is unstable and he is often forced to sell his purple tea for the same price as green tea leaves...
2016.12 CET4 听力题