Pentoxide
n. [化]五氧化物
🗣️ 情景例句
He just loves that teddy bear
他就喜欢这个玩具熊
Bees that have honey in their mouths have stings in their tails.
口蜜腹剑。
Yes, I have. I found it in my bag five minutes ago.
是的，找到了。五分钟以前在我的书包里找到的。