Ooporphyrin
蛋壳色素, 蛋壳卟啉
🗣️ 情景例句
Well, it's eight twenty now.
现在是八点二十了。
Would you please take a message?
请你代我留话好吗？
I don't think it is advisable that Tom be assigned to the job since he has no experience.
我觉得把这工作交给汤姆做并不明智，因为他没有经验。