classes:  lecturer. But my suggestion is that if that's the case, you should give a brief lecture before you do it.  curriculum. But my suggestion is that if that's the case, you should give a brief lecture before you do it.  facility. But my suggestion is that if that's the case, you should give a brief lecture before you do it.  general. But my suggestion is that if that's the case, you should give a brief lecture before you do it.