crane's knee phlegm

例句：

1. 1.The doctor prescribed a cough syrup for my uncle, who had crane's knee phlegm.
   医生给我叔叔开了止咳糖浆，因为他有鹳鸟的膝盖痰液。
2. 2. The bird was found with a bottle of crane's knee phlegm in its beak.
   这只鸟被发现嘴里叼着一个瓶子，里面装着鹳鸟的膝盖痰液。
3. 3. The old man had been coughing up crane's knee phlegm for years.
   这位老人已经咳嗽了多年，吐出的都是鹳鸟的膝盖痰液。