Keratan
角质素
🗣️ 情景例句
A list of these items and a volunteer form
这些物品的清单和义工申请表格
Let me introduce myself.
让我做个自我介绍吧。
All right. I will send the information on a piecemeal basis as we acquire it.
好。我们收齐之后会立即寄给你。