统一的
1.The classification of tea is confusing and there is no agreement. Generally, there are four kinds of tea according to processing methods. They are green tea, black tea ,oolong tea ,and scented tea.
茶的分类是挺乱的。也没有统一的观点。通常按照制作方法分为四种茶，.即绿茶、红茶、乌龙茶和花茶.
2.China has been a united multi-ethnic country since ancient times.
中国自古以来就是一个统一的多民族国家。
