be an example to

例句：

1. 1. She is an excellent example to her students.
   她对学生来说是一个很好的榜样。
2. 2. The teacher was an example to his students.
   老师是学生们的榜样。
3. 3. He became an example to all who saw him.
   他成为了所有看到他的人的榜样。