指甲和鸟喙的组成成分都相同。
Fingernails are made from the same substance as a bird's beak.
对不同鸟类的观察越仔细，你对多种多样的鸟喙的了解就会更深入。
The more closely you begin to examine different birds, the more familiar you will become with the wide range of bills.
吞钡显示了较低的食管鸟喙的出现，食道扩张的，和钡淤滞在食管。
Barium swallow demonstrating the bird-beak appearance of the lower esophagus, dilatation of the esophagus, and stasis of barium in the esophagus.
应用推荐