The rule of breaking sentences in classical Chinese refers to dividing the syllables in a sentence into several parts and determining the relationship between these parts. Usually, there were several ways to break a sentence in classical Chinese: * The first word (subject) of a sentence is broken before the subject. * The first word in a sentence is broken after the subject. This is to separate the predicates and objects in the sentence after the subject. * Conjunction in a sentence: The conjunction in a sentence (such as "also","hu","yu","and","zhi","yi","yan","er","ze", etc.) is separated and broken in front of the conjunction. * Modal particles at the end of a sentence: the words in the sentence (such as "hu","yu","er","zhi","yi","yan","er","ze", etc.) are separated and broken after the words. It was important to note that when breaking sentences, one needed to judge which sentence breaking method was more appropriate according to the specific context and sentence composition. At the same time, he also had to pay attention to avoid making mistakes when breaking sentences so as not to affect his understanding.