Superfield
扩张域
🗣️ 情景例句
We looked at a lot of houses.
我们看了好多房子。
In college I majored in physics, What was you major?
大学时我主修物理，你主修什么呢？
I knew that experts from the local museum would soon visit the cave.
我知道本地博物馆的专家会很快到山洞来探访。