Tetrapyrrole
n. 四吡咯
🗣️ 情景例句
This has been a long day.
这是个漫长的一天。
A standard one. Replacement during the first year if all rules for proper use have been followed.
有一个原则，如果在一年内符合各种使用规定，就可更换。
People will do anything to see a free show -- even if it is a bad one.
人们总要想尽办法看不花钱的演出——哪怕是拙劣的演出。