Instabilities
n. 不稳定, 不稳固( instability的名词复数 )
🗣️ 情景例句
Take care on your way back.
回程保重了。
What track does the Metroliner leave from?
华纽特快从第几轨道开出？
It is one of the world's most important languages because it is so widely used.
英语使用得如此广泛，它已成为全球最重要的语言之一。