单词	barbicel
释义	barbicel /ˈbärbəˌsel / noun Any of the minute hooked filaments that interlock the barbules of a bird’s feathers.Barbs can be separated from each other and smoothed back into place because barbules and barbicels act somewhat like a zipper.... It is important for the feathers to be relatively broad, with a web of good firm texture, a strong shaft, the barbs, barbules, and barbicels closely and tightly knitted together. Often part of a bird's incessant cleaning routine is the straightening of wing primaries, which seems to help reattatch the barbicels so the wings remain fully functional.
随便看	Doré, Gustave DoS dosa dosage dos and don'ts dose do-se-do dose equivalent dose-response curve dose–response dosh dosha do-si-do dosimeter dosimetric dosimetry do someone a favour do someone a good (or bad) turn do someone an injustice do someone a solid do someone credit (or do credit to someone) do someone dirt (also do dirt to) do someone fine do someone good do someone in

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