horizon

我们能看到一艘大船出现在地平线上。

We could see a large ship on the ___horizon.

日落时分，一道灿烂的橙色光带在地平线上徘徊。

As the sun set, a brilliant band of orange light lingered on the ___horizon.

在沙漠的烈日下，沙丘仿佛融入了苍白的地平线。

The sand dunes seemed to melt into the pale ___horizon under the desert sun.