teach单三式怎么写

　　例句：

　　She retired last year but still teaches the odd class to keep her hand in.

　　她去年退休了，但偶尔还上课，以免技巧生疏。

　　It is fitting that the new centre for European studies should be in a university that teaches every European language.

　　新的欧洲研究中心应设在教授所有欧洲语言的大学里才合适。

　　There will be an overlap of a week while John teaches Ann the job.

　　将有一周的交接期供约翰向安解释工作性质。