Pentoxide
n. [化]五氧化物
🗣️ 情景例句
Let me think.
让我想想。
If I wanted to rent a van, how much would it cost?
要是我租一辆搬运车，得花多少钱？
If he, or someone like him, were alive today, he might be able to tell us what to expect in the next fifty years.
如果他或是像他的什么人今天还活着的话，他大概可以告诉我们下一个50年后会发生什么事情。