Unobservables
(unobservable 的复数) adj. 难以察觉的；注意不到的；不可见的
🗣️ 情景例句
He treated his employees with exceptional cruelty.
他对雇员非常残酷。
We must listen carefully to the teacher.
我们必须注意听老师说的话。
Fifteen policemen had to push very hard to get him off the main street.
15个警察不得不用很大的力气把它推离主要街道。