You can recall whether you have ever had such a situation. When memorizing classical Chinese that you think you have mastered, you often get stuck at the beginning of a paragraph and don't know how to recall it at all. But once someone reminds you that you are stuck at the beginning of this paragraph, you can recite it easily.
At this time, you can focus on mastering the words at the beginning of the paragraph to help you remember.
For example, Mencius said, "Born in sorrow, died in happiness". When reciting this classical Chinese, we can focus on reciting the words that describe the suffering of people who bear heavy responsibilities: bitterness, fatigue, hunger, emptiness and confusion.
According to this line of thinking, it is easy to string together keywords and recite them.