keratin cutin horn ceratine
the bird´s horny beak
鸟的角质喙
—— 给力词典精选Nails are thin horny growths at the ends of the fingers.
指甲是生长在手指头尖端的细薄角质物。
—— 给力词典精选The knife has a horn handle.
那把刀有个角质柄。
—— 给力词典精选It would even peck my bobbing nib with its waxy red bill.
索性用那涂了蜡似的、角质的小红嘴,“嗒嗒”啄着我颤动的笔尖。
—— 给力词典精选Celluloid resulted from efforts to produce a synthetic horn.
制造合成角质的层试,导致了赛璐珞的产生。
—— 辞典例句