Vpd
[医][=variation per day]日变量
🗣️ 情景例句
We'll be heading back late in the afternoon.
我们会在黄昏时打道回府。
The stronger the motivation, the more quickly a person will learn a foreigh language.
一个人学外语的动力越强大、学得就越快。
Neither of the men spoke.
两个人都没说过话。