Porphyrins
卟啉类化合物
🗣️ 情景例句
Jack Wang? No, I don't think I know him.
杰克王？我想我不认识。
Without all the facts, Helen could only conjecture a solution.
由于事实还没有全部完备，海伦只能臆测解决的方法。
We had a very nice time.
我们过得非常愉快。