Could those experiments provide insights profound enough to justify the expense of sending people across interplanetary space?

这些实验能提供足够深刻的见解，从而将把人送到星际空间的花费合理化吗？

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The answer is simple: Space of an observer expands with increasing speed at the expense of remaining time reserves for the future.

答案很简单：一个观察者的空间以逐渐增加的速度膨胀，代价是为未来储存时间。

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Paradise for Joyce was an open space where poor children could go and do Arts at state expense.

对乔伊斯来讲，天堂就是花国家的钱，让穷孩子们聚在开阔的室外空间，从事艺术活动。

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This thing's nice because rather than do "if" and "and and" or "or or" and all of this, you can instead enumerate things a little more cleanly, albeit apparently at the expense of more white space.

这个东西是不错的，因为它不用“if“和“and，and“,或者“or，or“所有的这些，你可以用枚举来更清楚地表达它，虽然表面上它用了更多的空格。

哈佛公开课 - 计算机科学课程节选

But with Acer making the jump into Smartphones next month and other non-traditional players having great success in the space at the expense of the former cellphone powerhouses, one thing is clear: PC guys "will just walk in" and figure this out.

ENGADGET: WSJ: Dell "preparing a move into cellphones as early as next month"

But what if space contained a destination that could justify the expense and attract visitors for days or weeks?

FORBES: The New Space Race

But even he is quick to admit that the science we can do in space may not be enough to justify the expense and risk of getting there.

FORBES: NASA Needs A Mission