Instabilities
n. 不稳定, 不稳固( instability的名词复数 )
🗣️ 情景例句
Well, the company has some financial problems. People there are all thinking of quitting.
是这样的，公司有些财政困难。人们都在想辞职。
Don't mention it.
不必客气。
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，