Pentachloride
五氯化物
🗣️ 情景例句
That's fantastic!
真了不起！
Would he have seen you if you hadn't waved to him?
如果你没向他招手他会看见你吗？
Not very popular. We play American football in the USA.
不很受欢迎。在美国我们踢美式足球。