目的观察人工冬虫夏草对慢性阻塞性肺疾病（COPD）的疗效。
1·They farmed the slopes and collected Chinese caterpillar fungus and fritillary butterflies to sell as traditional medicine.
他们在斜坡上耕种，收集虫草和贝母蝴蝶作为传统药材出售。
2·The Duck with Chinese Caterpillar Fungus?
虫草鸭子？那是一种保健食品，对吧？
1·If you want to buy Chinese caterpillar fungus, welcome to our customer service consulting the most timely price.
如果你要购买冬虫夏草，欢迎向我们的客服咨询最及时的价格。
2·As the name suggests, Chinese caterpillar fungus of course, is a worm in winter, while in summer it becomes a grass.
顾名思义，冬虫夏草当然冬天是虫，而夏天就变成草了。