The rules of English grammar and usage are broadly agreed upon, the prescriptivist-descriptivist arguments over a few usages aside.

除规定派和描述派争论的几个用法外，英语语法规则和用法普遍是一致的。

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But in the middle of the twentieth century their prescriptivist assumptions came up against violent opposition, at least in the academic world.

NEWYORKER: The English Wars