日落方向

Sunset \Sun"set"\, Sunsetting \Sun"set`ting\, n.
1. The descent of the sun below the horizon; also, the time
when the sun sets; evening. Also used figuratively.

'T is the sunset of life gives me mystical lore.
--Campbell.

2. Hence, the region where the sun sets; the west.

{Sunset shell} (Zo["o]l.), a West Indian marine bivalve
({Tellina radiata}) having a smooth shell marked with
radiating bands of varied colors resembling those seen at
sunset or before sunrise; -- called also {rising sun}.