The latter often shows that there is a "chop concave" on the slope base.

后者常表现为斜坡坡脚部分存在有“嵌凹”；

youdao

Warm up with a 10-minute run to the base of a hill that has a steady (but not overly steep) slope.

花10分钟时间，跑到有些坡度(但不能太过陡峭)的小山脚下，当作一次热身。

youdao

On a slope at the naval base, looking over the West Sea, is a monument to the six sailors killed in the 2002 engagement.

在海军基地一个面朝西海的山坡上，有一座为纪念2002年死难的六名水手而建的纪念碑。

youdao

You base this on the slippery-slope argument: selected cases may grow into casual practice over time.

ECONOMIST: Torture arguments

Middleton notes that December 2007 will see the opening of 60 ski-in, ski-out suites at the base of Big Sky, units expressly designed for slope-side entertaining.

FORBES: Just the ticket

If expansions in base money were correlated with predictably higher GDP growth, and contractions in base money were correlated with predictably lower GDP growth, the slope of the line would be flatter and the fit would still be reasonably good.

FORBES: Has The Fed Lost Control?