我在私立中学教了两年英语的翻译：I taught for two years in the private secondary English 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

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I taught for two years in the private secondary English

I have taught two years English in the privately established middle school

I taught two years in a private secondary school English

I taught for two years in the private secondary English