Pyrogen
n. 致热质, 发热原\\n[医] 热原, 致热物
🏥 医学释义
热源，致热物
🗣️ 情景例句
I want to send this letter to China, by air mail.
我想把这封信航空邮到中国。
This nation is noted for its scientific accomplishments.
这个国家以科学成就闻名。
How's it going?
怎么样？