lesson in的用法和樣例：
例句
- Let this accident be an object lesson in the dangers of drinking and driving.
這一事故可以作為醉酒駕駛危害的實際教訓。 - The first lesson in driving is how to start the car.
學駕駛汽車的第一課是啟動。 - I was busy looking up all the new words of the lesson in my dictionary.
我忙著在字典里查本課所有的生字。 - Professor Li is absent, I will take the lesson in the place of him.
李教授不在，我替他上課。
