Polyoxide
多氧化物
🗣️ 情景例句
I woke up when I heard someone speak.
一听到有人说话我就醒了。
Here's no necessary.
我看没这必要。
He informed the station at once, but no one there was able to explain the mystery.
他马上把情况报告了该基地，但那里的人没有一个能解释这到底是怎么回事。