“在”和“再”各有3个词性。“在”作介词、副词时,义项单一。作介词,其语法作用是引进动作行为的时间、处所、范围、条件;作副词,当“正在”讲。它作动词时,义项较多,不赘述。“再”作数词和动词时,义项单一,分别作“二、第二”和“重现、继续”讲;作副词时,义项较多,不赘述。下面4个例句中的这两个字都用错了。 “In” and “again” each have 3 part of speech. “In” as prepositions, adverbs, the meaning of a single. As a preposition, the grammatical function is to introduce the action time, place, scope, conditions; as an adverb, when “is” speaking. When it is a verb, there are more righteous items, so it is not repeated here. When “re” is used as a nouns and verbs, the meaning of a single, respectively, as “second, second” and “reproduce, continue,” speaking; as adverbs, more meaning, not repeat them. The following four examples of these two words are used wrong.