Underkeeper
n. (森林或公园等的)助理管理员
🗣️ 情景例句
Well, I don't think it's anything serious.
嗯，我想没有什么严重的。
The train is comfortable.
坐火车很舒服。
We should not only know the theory but also how to apply it to practice.
我们不仅要知道理论，还要知道怎样把理论应用于实践。