Ooporphyrin
蛋壳色素, 蛋壳卟啉
🗣️ 情景例句
These are lucky kids.
这是一群幸运的孩子。
How much is it all together?
一共多少钱？
The hovercraft is particularly useful in large areas with poor communications such as Africa or Australia;
气垫船在非洲、澳大利亚等交通不发达地区特别有用。