最重要的是，你应该要保持演讲的活力。的翻译：Most important is that you should to maintain the vitality of the presentation. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

The most important thing is that you should maintain the vitality of speech.

Most important is that you should to maintain the vitality of the presentation.

Most importantly, you should have to maintain the lecture the vigor.

The most important thing is that you should maintain vitality of the keynote speakers.

Most important is that you should to maintain the vitality of the presentation.