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世界上有多少种语言（世界上最流行的10种语言）
世界上有多少种语言（世界上最流行的10种语言）世界上最流行的10种语言 10 Most Popular Languages in the World 双语中文英语 In order for a human to sustain in this society, it is important to communicate one's thoughts, ideas, desires and opinions. The best way to do so is with the tool...