“swifts”簡單造句，swifts造句子

Bird's nest soup is a delicacy in Chinese cuisine. A few species of swift, the cave swifts, are renowned for building the saliva nests used to produce the unique texture of this soup.

I did not realize that as I bound the power of river, swifts and stone into the metal, I also filled the sword with sorrow and the despair of death.

This rare and expensive food is actually made from the jellylike saliva that swifts (a type of bird) secrete as they line their nests.

The air was fretted with a kaleidoscopic network of swifts