名词、动词、虚词开头的四字词组两译本分别有1,042个，占四字词组总数的36%，说明这三类四字词组是《素问》四字词组的重要形式。

There are 1,042 four-word phrases (36%) beginning with nouns, verbs and function words, suggesting the three forms are the most important forms of four-word phrases in PQ.

youdao

在英语句法分析中，人们通常认为有四类词组，即名词词组，动词词组，介词词组和形容词词组。

In English syntactic analysis, four phrasal categories are commonly recognized and discussed. They are noun phrase(NP), verb phrase(VP), prepositional phrases(PP), adjective phrase(AP).

youdao