So I'm going to put the left and right in inverted commas here because actually what they did was they corrected for people's natural direction and not natural direction.

现在我用反转的方式表示左右,因为,实际上,他们为此做了有关,人自然方向与非自然方向的研究

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because they use it, and maybe next year, they're not using.

他们现在会用这东西，但到下一年，他们大概连碰都不碰了。

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