Ooporphyrin
蛋壳色素, 蛋壳卟啉
🗣️ 情景例句
He owes his success more to luck than to ability.
他认为他的成功是靠运气而不是靠自己的能力。
I will have done it by the time you come back.
在你回来之前，我会做完它。[将来完成时，表示将完成…，会做完…]
At one point, it seemed certain that their plane would crash.
在有个地方，飞机似乎肯定要坠毁了。