1）翻译下面的句子：
约翰本来想找一个信封，但没想到读起了一些旧时的信件。
（参考翻译：John was looking for an envelope and got sidetracked reading some old letters.）
2) You need to stay focused on study. Don't get sidetracked by your girlfriend.
A plan to travel abroad was sidetracked by budget problem.
