kāitóu kěyǐ màn yīdiǎn shuō qīngchu wǒ shì shuí jiǎng shénme wèishénme jiǎng

开头可以慢一点，说清楚“我是谁、讲什么、为什么讲”。

The beginning can be slower, clearly stating 'who I am, what I'm talking about, and why I'm talking.'