音标：[prepə'zɪʃnz] ；

n. 介词( preposition的复数形式 )

n. a function word that combines with a noun or pronoun or noun phrase to form a prepositional phrase that can have an adverbial or adjectival relation to some other word
n. (linguistics) the placing of one linguistic element before another (as placing a modifier before the word it modifies in a sentence or placing an affix before the base to which it is attached)

prepositions的用法和样例：

例句

Prepositions and conjunctions are particles.介词和连词是小品词。
Fill in the blank with prepositions.用介词填空。

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