Variational
a. 变异的
🗣️ 情景例句
I'm taking 19 credit hours.
我修了十九个学分。
You'll be on air in two minutes.
两分钟以后你会上电视。
Well, for example, you can have a cold, but first you have to catch a cold.
哦，例如，你可能“患感冒”，但你首先得“伤风”。