Smectic
a. 净化的
🗣️ 情景例句
Great job!
干得好，干得妙！
We'll talk about it later.
再说啦！
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，