五年之内，约翰·格伦绕地飞行，不到十年，我们把人送上月球。
Within five years, John Glenn was orbiting Earth, and less than a decade after that, we put a man on the moon.
1975年，她因用了不到8小时绕游曼哈顿岛而创下纪录。
In 1975, she set a record for swimming around the island of Manhattan in just under eight hours.
这对双子星不到13分钟就能绕轨道转一周。
The binary pairing completes an orbit in less than 13 minutes.
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