When a trainer tries to give a lecture, the content of the lecture should be focused, which is the fundamental requirement. Training lecturers usually have a short trial period, and try to refine the key points of the content. When trying to speak, you can use PPT to combine words, pictures and animations. It is vivid and rich, and can quickly catch the attention of the lecturer.

Try not to have problems when you speak. Some problems that can't highlight the strength of the lecturer will only affect the interview results. If all aspects are mentioned in the article, the result can only be a scratch.