The car can't come up, as the slope is so steep.

坡太陡，车子上不来。

《新英汉大辞典》

He looked up the slope of land that rose from the house.

他抬头看了看从那所房子向上隆起的斜坡。

《柯林斯英汉双解大词典》

The horses laboured up the steep slope.

那些马费力地爬上了陡坡。

《牛津词典》

Up a trackless slope climbs the master artist, and at the top, on a windy ridge, whom do you think he meets?

伟大的艺术家在那无路可寻的山峰上攀登，他登上山顶，迎风而立，你们猜他遇到了谁？

耶鲁公开课 - 1945年后的美国小说课程节选

Williams explains that climate zones are stacked up the slope like layers of a cake.

NPR: Warming Will Create Micro-Climates, Scientists Say

Nine crampon-footed hikers crunch up the slope of Athabasca Glacier before stopping to catch their vaporous breath.

BBC: The perfect trip: The Canadian Rockies

At the edge of the clearing a pregnant cow was lurching up the slope, its eyes wild with terror.

NPR: Excerpt: 'Lost in Uttar Pradesh'