The group which they delimit are called natural groups . 由此划分出的类群称为自然类群。
2.
Nepstad produced a report for the world wildlife fund for nature or wwf that was released at the bali climate change conference 提供了关于自然类世界野生基金或wwf的一份报告，该报告在巴里气候变化会议提交。
3.
The judge chen hanyuan said chinese nature category documentaries are changing from focusing on pictures and knowledge introduction to more thought - provoking and interesting topics 陈汉元评委认为，中国自然类纪录片，从以前的欣赏性、知识性过渡到现在比较多的思考性，既好看又深刻。
