Nonstationarity
非平稳性
🗣️ 情景例句
The citizens of Riverdale, of course.
当然是Riverdale的公民。
His controversial speech caused a wild discussion.
他们有争议的讲话引起了一场广泛的讨论。
both men were genuinely sorry that they had to leave.
这二位不得不离开那个荒岛时，还真的感到遗憾呢！