English Dictionary

swiftlet

noun

Any of the various tropical and subtropical birds of the four genera Aerodramus, Hydrochous, Schoutedenapus, and Collocalia in the swift family, many of which can navigate in darkness using echolocation.

The swiftlet builds its nest using saliva.

意味（1）

Any of the various tropical and subtropical birds of the four genera Aerodramus, Hydrochous, Schoutedenapus, and Collocalia in the swift family, many of which can navigate in darkness using echolocation.