Teroxide
三氧化物
🗣️ 情景例句
I just solved the mystery.
我刚刚把那个谜底解开了。
Sure. We are friends since primary school.
当然，我们从小学就是朋友了。
its action depends on the surface, water or ground, over which it rides.
它的飞行取决于它所悬浮的水面或地面。