(每日一词）precipitous

Precipitous /prɪˈsɪpɪtəs/ adj. （地形）陡峭的，险峻的;（变化）急剧的，骤然的;（行为）仓促的，鲁莽的

1) 前缀: pre- 前面

2) 词根: cipit- 头 (capital 首都)

3) 后缀: -ous 形容词后缀

There was a precipitous drop in stock prices after the announcement. 公告发布后，股价出现了急剧下跌。

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