Tetrafluoride
n. [化]四氟化物
🗣️ 情景例句
We urgently need to establish our own credit system.
我们期待建立我们自己的信用机制。
And to stay ahead of the competition is to openly and freely exchange our opinions.
处于竞争领先地位的方法就是公开、自由交换我们的想法
Excuse me, Mr Green. I can't find the twins.
对不起，格林先生，我找不到那对双胞胎了。