1）翻譯下面的句子：
約翰本來想找一個信封穆桂，但沒想到讀起了一些舊時的信件介蛉。
John was planning to find an envelope, but got sidetracked and ended up reading some old letters.
（參考翻譯：John was looking for an envelope and got sidetracked reading some old letters.）
2）結(jié)合自己的生活、學(xué)習(xí)糯累、工作吐葵、興趣等，想象在什么語境下會用到這個表達(dá)工闺。先簡要描述這個場景乍赫，再造句。
場景 ：上課時學(xué)生讓老師跑偏聊八卦
例子： The students sidetracked their teacher into talking about gossips in the entertainment industry.
