我开始奔跑，拼命地让那艘大型飞船保持在视野之内，哪怕只有一线可能，我也会尽力提供援助。
I start running, desperate to keep the larger air - craft in sight and perhaps provide aid if it is remotely possible.
到目前为止，商用无人机只可以在白天使用，飞行高度不得超过500英尺，且必须处在运营商的视野范围之内。
Thus far, commercial drones are limited to daytime flight of altitudes to 500 feet. And, they must be in the line of sight of their operators.
通过对望远镜视野之内的156,000个目标恒星的观测，在43天的时间里发现了706个体积介乎地球和略大于木星之间的太阳系外行星。
Of the 156,000 target stars in the telescope's field of vision, the 43 days of observations found 706 possible extrasolar planets from Earth size up to a bit bigger than Jupiter.
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