Ooporphyrin
蛋壳色素, 蛋壳卟啉
🗣️ 情景例句
I should have saved some money.
我早该存些钱。
Compared with the price in the international market, our quotation is quite reasonable.
和国际市场价格相比，我方报价相比较合理。
What's that?
那是什么？