Fluoprotactinate
氟镤酸盐
🗣️ 情景例句
There just wasn't enough time.
实在是没有足够的时间。
The demand for our products has kept rising.
要求定购我们产品的人越来越多。
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，