Water fluvial_landforms_of_streams 물 식물 sky cloud natural_landscape plant 산악지대 highland coastal_and_oceanic_landforms 하늘 watercourse 구름 water_resources 물_보호

.

\uc548\uac1c\ub080 \uc800\uc218\uc9c0, \ubd93\uaf43