Erythrocruorine
无脊椎动物血红蛋白
🗣️ 情景例句
It was an extremely difficult and dangerous task.
这是一项极度困难的危险的工作。
Call me not olive till thou see me gathered.
盖棺论定。
but where had it come from?
但它是从哪儿来的呢？