A bolt of lightning flashed across the horizon.

道闪电划过地平线。

Graham sat aft, looking steadily out to the horizon.

格雷厄姆坐在船尾，凝望着地平线。

The skyline is easily discernible even at a distance of several miles.

甚至在几英里之清晰地辨别出地平线。

He descried an island far away on the horizon.

他看到遥远的地平线上有个岛屿。

The horizon is a continuous line.

地平线是条不延伸的直线。

The sun appeared on the horizon.

太阳在地平线上出现。

A ship disappeared below the horizon.

船消失在地平线。

The captain swept the horizon.

船长向地平线扫视。

New Horizons' trailblazing journey to the solar system's outermost frontier took it past the orbit of Mars today at 6 a.m. EDT , 78 days after the spacecraft launched.

新地平线打响探索太阳系边疆的第炮，而在今天美国东部时间早上6点，在发射78天后它成功跨越火星轨道。