例句：
Any teacher will tell you that students learn at different rates.
任何老师都知道学生学习有快有慢。
His first music teacher was a major influence in his life.
他的第一位音乐老师是他一生中对他影响非常大的人。
She spent most of her working life as a teacher.
她一生中大部分工作时间都当教师。
The teacher assigned each of the children a different task.
老师给每个儿童都布置了不同的作业。