Changing
v. 交换；兑换；改变（change的ing形式）
✅ 同义词
🔴 反义词
🗣️ 情景例句
Too noisy to study.
太吵了书看不下去。
In college I majored in math, What was your major?
大学时我主修数学，你主修什么呢？
I want something to eat.
我想吃点东西。