Tetrapyrrole
n. 四吡咯
🗣️ 情景例句
What?
什么办法？
He is on the phone.
他正在通话。
I simply don't know. He may have plans, but he hasn't yet spoken to me about them.
我一点儿都不知道。他也许有计划，但他还没跟我谈他的想法呢。