天空

Across or over (a boundary or obstacle).

Across (a street, river, or area).

Along, parallel to; following a path or line.

Along (a path, river, or line).

Around, surrounding, or in the vicinity of.

Near, beside; indicating proximity to something.

Between, among; indicating a position in relation to others.

Beyond, on the other side of; indicating a position further away.

To bury, fill up, or cover with earth.

Cold air, a mass of cool atmospheric gas.