Ossein
n. 骨胶原\\n[化] 骨胶原; 生胶质
🗣️ 情景例句
I will.
我来。
What were you doing when I called you on the telephone?
当我打电话给了你时，你正在做什么？
However, size and strength are not the only important things about this bridge.
然而，这座桥重要特点不仅是它的规模与强度。