Methanogen
n. [微]产烷生物
🗣️ 情景例句
Oh, who could that be?
啊，这会是谁呢？
It's no trouble at all. I'll carry this suitcase for you.
一点也不麻烦，我来替你提这只箱子。
What a lot of smoke!
好浓的烟啊！