“和”兼介、连、动三类。作动词用较为明显,读音也有别(如“和稀泥”的和),毋庸赘述。但当其出现于两个同一性质的实词或词组之间,组成联合词组时,究属连词还是介词,有的就较难分辨了。为了使问题简化一些,不妨先把较易分辨的两种情况摆出来。一种情况是,由于介词不能和动词、形容词组成介词结构,所以出现于两个动词或形容词之间的“和”一般 “And” both introduce, link, move three categories. The use of verbs is more pronounced, and the pronunciation is different (such as the sum of “difficult mud”). Needless to say. However, when it appears between two substantive words or phrases of the same nature and constitutes a joint phrase, the study is a conjunction or a preposition, and some are difficult to distinguish. In order to simplify the problem, it may be better to put two more easily distinguishable situations. In one situation, because prepositions cannot form prepositional structures with verbs and adjectives, the “sum” that appears between two verbs or adjectives