下面我将开始我的试讲用英语怎么说_下面我将开始我的试讲英文怎么写

Now I will start my trial

试讲───A trial lecture;开始───start

trial lecture, of course, I'd prepared, but I found the blackboard was different from the one we usually saw in our classroom, and the platform?───试讲，当然，我有准备，但是我发觉这个黑板和我们教室里经常看到的不一样，还有这个讲台？