例句：
He may have trouble with some classmates.
他可能和一些同学有矛盾。
If you have trouble with a lesson, repeat it the next day.
如果你对一课没有掌握，第二天要温故这一课。
Sometimes I have trouble with spelling.
有时，我拼写单词上有困难。
Sometimes he did have trouble with that trick.
有时候他玩那个把戏时也会遇上麻烦。
