Horizon
01
地平线
the line where the sky and earth seem to come in contact with each other
例子
The sun dipped below the horizon, casting a warm glow across the sky.
太阳沉入地平线以下，在天空中投下温暖的光芒。
From the mountaintop, they could see the city skyline on the horizon.
从山顶上，他们可以看到地平线上的城市天际线。
02
the limit or extent of one's experience, interests, or outlook
例子
Travel can broaden your horizons.
Scientists are constantly pushing the horizons of knowledge.
03
a distinct layer of soil or subsoil in a vertical section of land, differing in composition or color from adjacent layers
例子
The topsoil formed the upper horizon of the profile.
Geologists identified several horizons rich in clay.
04
the circle on the celestial sphere whose plane passes through both the observer's visible horizon and the Earth's center
例子
Astronomers measure a star's altitude above the celestial horizon.
The celestial horizon divides the visible sky from the unseen half.
