Pentachloronitrobenzene
五氯硝基苯
🗣️ 情景例句
And Alexandra brought us a pumpkin pie. Alexandra
Alexandra 给我们带来了一个南瓜派。
I'm going to show him how to speak Chinese.
我正要指点他如何讲中国话。
Although we can't see these atoms, they really do exist.
虽然我们看不见原子，但它们的确存在。