1、上课
...to take lessons (学生)上课to teach (老师)上课to study 学习 ...
to lectureto teach讲授
what to teach教什么;教什么;拿什么去教
How to Teach English怎样教英语
Licence to teach上岗证
writing to teach写以致学
Grade to Teach任教年级
Why to teach么教
Courage To Teach勇于传授
Obligation to teach migrant义务支教打工子弟