来自precipitate,一头栽下，-ous,形容词后缀。引申词义陡峭的，仓促的，贸然的。

1. Meryl's health started a precipitous decline.

梅里尔的健康状况开始急剧下降。

2. The stock market's precipitous drop frightened foreign investors.

股票市场的猛跌吓坏了国外投资者。

3. a precipitous drop at the side of the road

道路一旁陡降的坡面

4. Could there be a mountain more precipitous than this?

山之险峻,宁有逾此?

5. A precipitous path led down the cliff.

从峭壁上下来有一条险峻的小路.