A run-onsentence is a sentence in which two or more independentclauses (that is, complete sentences) are joined with no punctuation or conjunction.
两个句子的连接必须用连词或分号,用逗号来连接两个句子只能是分句,不是主句。
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A sentence of two or more coordinate independentclauses, often joined by a conjunction or conjunctions, as the problem was difficult, but I finally found the answer.