The rock was slippery as a ball, and they had to crawl rather than climb.

岩石滑得像个球，他们无法爬行，只能匍匐前进。

youdao

He is a slippery customer, and should be carefully watched.

他可是个狡猾的主顾，得小心看着他。

《柯林斯英汉双解大词典》

She tried to get a purchase on the slippery rock.

她设法抓牢光滑的岩石。

《牛津词典》

We don't want to get the Supreme Court into making fine distinctions about what is better than others, because that will lead us down a slippery slope.

VOA: special.2011.07.04

And so in the sentence that we've just looked at at some length now we have embodied in the form of a shifting argument - a really slippery argument -- the two senses of the word vocation: vocation as a job and vocation as a divine calling.

所以在我们详细看过的句子里,现在我们把他具体化成为论点的形式,这是一种狡猾的论辩--vocation的两种含义：,作为工作或者作为神的召唤。

耶鲁公开课 - 弥尔顿课程节选

It is a slippery slope. And, we're not careful, before we know it all of us will be in a much more dire situation."

VOA: standard.2009.11.11

There was the mother who once turned to leave him with a screaming and squirming "slippery as a seal" infant.

CNN: Being Santa: 7 men share tales from behind the red suit

So should the Swede be seen now as a slippery customer, or as a football coach who had achieved modest success with England, and who is entitled to his private life?

BBC: SPORT | Football | Internationals | How did Eriksson survive?

Complicity is a slippery word, but there is a degree of truth in what he says.

ECONOMIST: East Timor