Nitralin
[化] 甲枫乐灵; 磺乐灵
🗣️ 情景例句
Where's my cap and gown?
我的帽子和长袍在哪里？
They won't listen, so don't waste your breath telling them.
他们听不进去，不必和他们多费口舌了。
Similarly, our own present primitive chemical rockets, though good enough to orbit men,
同样，我们目前使用的原始化学火箭，虽然可以把人送入轨道，