Hexoxide
六氧化物
🗣️ 情景例句
Table tennis, I suppose. That's almost our national game. People from all walks play it.
我想应该是乒乓球吧。它几乎是全国性运动，各行各业的人都打。
Who cares!
我不在乎！
why have we had no visitors from outer space yet?
那么我们为什么还未见到外层空间来访的客人呢？