A thousand-li journey is started by taking the first step. 千里之行，始于足下。

外研版英语必修一
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A thousand-li journey is started by taking the first step. 千里之行，始于足下。

外研版英语必修二
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A thousand-li journey is started by taking the first step. 千里之行，始于足下。

外研版英语必修三
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A thousand-li journey is started by taking the first step. 千里之行，始于足下。

外研版英语必修四
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A thousand-li journey is started by taking the first step. 千里之行，始于足下。

外研版英语必修五
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A thousand-li journey is started by taking the first step. 千里之行，始于足下。

外研版选修六
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外研版选修七
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A thousand-li journey is started by taking the first step. 千里之行，始于足下。

外研版选修八
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