老师"的英语是：teacher.
英音 [ˈti:tʃə]
美音 [ˈtitʃɚ]
双语例句：
1、我把我的答案和老师的对照一下，发现我有个地方错了。
I compared my answers with the teacher's and found I had made a mistake.
2、师斥责了一个在课堂上说话的女生。
A teacher reprimanded a girl for talking in class.
3、老师常常把我和另外一个同姓的男孩搞混了。
The teacher often mixed me up with another boy of the same family name.