Optokinetic
a. [动]视动的
🗣️ 情景例句
I'm going to the library to do some research.
我要去图书馆搞些调研。
How long have you been studying English?
你学了多长时间的英语了？
His few material possessions make it possible for him to move from place to place with ease.
他几乎没有什么财产，这使他能够轻松自如地在各地奔波。