题目内容：

翻译句子(英语翻译成汉语，汉语翻译成英语)

1.我发现学好英语很难。

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2.我认为不应该允许16岁大的孩子吸烟。

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3.老师把我们班分为六个小组。

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4.He read a book written by Lu Xun yesterday。

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5.He need to think about what will happen if he doesn’t end up as a professional runner.

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