Tetranitrocompound
四硝基化合物
🗣️ 情景例句
Thank you very much. So we can put our minds at ease.
非常感谢，这样我们就放心了。
All are not merry that dance lightly.
表面高兴的，未必都快乐。
Oh, I'm feeling even worse! I think I'm going to die!
噢，我感觉更糟了！我想我要死了！