1 towards the bottom of a hill; in a downward direction 向山下; 向下.
2 (idm 习语) ,go down`hill get worse (in health, fortune, social status, etc); deteriorate （健康状况、运气、社会地位等）走下坡路, 每况愈下; 恶化
*This part of the town used to be fashionable, but it's starting to go downhill. 该市这一地区一度很繁华, 如今已江河日下.
1 [attrib 作定语] going or sloping towards the bottom of a hill 下山的; 下坡的; 向山下倾斜的
*a ,downhill `race 下山比赛.
2 (infml 口) easy compared to what came before （与前相较）容易的
*The difficult part is learning the new computer codes after that it's all downhill. 困难的部分是学会计算机的新编码--其余就轻而易举了.
1. The boys hurt themselves sliding downhill. 男孩子们滑下山时伤着了自己。
2. It sped downhill at the end of the race and its driver had a lot of trouble trying to stop it. 它在接近终点时，冲下了山坡，驾驶员费了好大劲才把车停下来。