这是一项冒险的举动，但也许能换得更多的时间。

It was a risky operation, but might buy more time.

《柯林斯英汉双解大词典》

但是最近，公司已经开始计划更便宜的“亚轨道”飞行，在太空无际黑暗的边缘进行更短时间的冒险。

But more recently, companies have begun to plan more affordable "suborbital" flights—briefer ventures just to the edge of space's vast darkness.

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最近，一些公司已经开始计划更经济实惠的“亚轨道”飞行——在太空无际黑暗的边缘进行更短时间的冒险。

More recently, companies have begun to plan more affordable "suborbital" flights—briefer ventures just to the edge of space's vast darkness.

youdao