The cart was very heavy , and in addition , there were many ascents.这辆车实在难拉,而且又很重, 还得上许多坡.Balloon ascents overcome this hazard with ease.升空的气球能轻而易举地克服这一困难.A song of ascents. Of David.大卫上行之诗....

ascents的音标：...

n.上升( ascent的名词复数 )，（身份、地位等的）提高，上坡路，攀登...