teacher本身就是一个英文单词，意思是：n.教师;教员;老师;先生。

例句：1.Teachers are up against some major problems these days. 老师们最近面临着一些重大问题。

2.The fact remains that we are still two teachers short. 实际情况是我们还缺少两名教师。

3.My teaching style is similar to that of most other teachers. 我的教学风格和多数教师相似。