One of the founders of the Modern Punctuation Mark System, Dr.
新式标点的奠基人胡适与《科学》杂志有密切的关系。
The punctuation symbol in a question is a question mark.
在一个问题标点符号是一个问号。
You need to put a punctuation mark at the end of every sentence.
你得在每个句子的结尾打上标点符号。
You need to put a punctuation mark at the end of every sentence.
你得在每个句子的结尾打上标点符号。
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