Stylistic conventions- if your language does not have a standardised universal form( way everybody speaks it to understand each other), you will need to have one or have a rule to tell people which forms or dialects of your language to use.
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- 文体惯例或协定-要是讲尔笃个言话呒拨一个标准化个普遍个形式(同语)个末尔笃就要专门有个人或者有只规矩,告诉别人家,到底用哪里一种形式个方言。