Any teacher will tell you that students learn at different rates.

　　任何老師都知道學(xué)生學(xué)習(xí)有快有慢。

　　She spent most of her working life as a teacher.

　　她一生中大部分工作時間都當教師。

　　Some teachers find it difficult to keep their classes in order.

　　有些教師覺得難以維持課堂秩序。

　　The teacher assigned each of the children a different task.

　　老師給每個兒童都布置了不同的作業(yè)。

　　There is a growing need for qualified teachers of Business English.

　　對合格的商務(wù)英語教師的需求日益增長。