teacher是可数名词；n.教师；教员；老师；先生；
teacher直接加S就变为它的复数：Teachers
相关介绍
Let's hear it for the teachers, for a change.
咱们变换一下，这回为老师们鼓鼓掌。
Many teachers would like to be more adventurous and creative.
许多教师愿意更加进取，更富创造性。
I would like to acknowledge my debt to my teachers.
我想向我的老师表达我的感激之情。
