NASA recently released these images taken from the craft some 3.2 million kilometers just 11 light seconds from earth.
美国航空航天局最近发布了从距离地球仅11光秒约320万公里的飞船上拍摄的图像。
Light seconds
原声例句
VOA常速英语_美洲
绅士怪盗
He emptied his glass slowly, smoked one cigarette and lighted a second.
他慢慢倒空杯子， 抽了一根烟， 又点上了第二根。
英语百科
Light-second
The light-second is a unit of length useful in astronomy, telecommunications and relativistic physics. It is defined as the distance that light travels in free space in one second, and is equal to exactly 299792458 metres (just over 186282 miles).
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