What these people have to work with are the tools that have been passed down to them, The poverty of the people Frost writes about is important.
这些人需要用一代代传下来,的工具或者自己制造的工具，弗罗斯特所写的这些人的贫穷非常重要。
Because although only the space pen writes upside down, ballpoint pens do work in space.
因为虽然只有太空笔能倒过来写字，普通圆珠笔其实能在太空中也能用。
Because although only the space pen writes upside down, ballpoint pens do work in space.
因为虽然只有太空笔能倒过来写字，普通圆珠笔其实能在太空中也能用。
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