Decertifies
vt. 收回…的证件；收回执照
🗣️ 情景例句
before getting to the tough stuff--math.
在对付难缠的东西 数学 之前。
My hobby is collecting coins.
我的嗜好是收集硬币。
This was known as panning for gold.
这就是人们所熟知的“淘金”。