Those scales are made out of the same hard protein, called keratin, as the scales of pangolins and other animals.

鳞片是由同样硬蛋白组成，叫做角蛋白，就像穿山甲和其他动物鳞片一样。

Gorgeous! Now this is what you want. A beautiful stiff meringue. This is how thick your pavlova should be. Beautiful look at that! Yum!

华丽！ 现就是你想要。 一个漂亮硬蛋白酥皮。是你巴甫洛娃应该有多厚。 漂亮看那个！ 百胜！

Another vocal development during puberty occurs when the homogenous tissue covering the folds specializes into three distinct functional layers: a central muscle, a layer of stiff collagen wrapped in stretchy elastin fibers, and an outer layer of mucus membrane.

青另一种声音发育发生覆盖褶皱同质组织专门分为三个不同功能层时：中央肌肉、一层包裹弹性弹性蛋白纤维中硬胶原蛋白层和外层粘液膜。