uphill
Từ liên quan
ascendingarduousstrenuousdifficultlaboriousdownhilldescendingeasyeffortlessslopegradientinclineascentclimbmountainhillpeaksummitridgeelevationaltitudesteepnesspitchrampstaircasestairwelltrekhikeexertionstruggleeffortstraintoilhardshipchallengeadversityobstacleburdenfatigueexhaustionbreathlessgravityfrictionmomentumvelocitytractionfootingpathtrailroadtrackwayrouteterraintopographylandscapevalleyplateaucliffprecipicecragupwardverticaldiagonalslanttiltangledegreerise