precipitation
UK/pri.sipi'teiʃәn/US
TOEFLGREB1
释义
n.
Rain, snow, sleet, or hail falling from the sky.
降水(雨、雪、雨夹雪、冰雹)。
n.
The process of a solid separating out of a solution (chemistry).
(化学)沉淀(作用)。
n.
Reckless haste; the act of bringing something about suddenly.
仓促,急促;(使某事)骤然发生。
词根拆分
词根派生建立在拉丁语 praecipitare「头朝下抛出」(prae- 头朝前 + caput 头)之上。precipitation 即被头朝下抛下之物:从天倾下的水(雨、雪)或从溶液中析出的固体(化学沉淀)。「骤然、一头栽下」之义引出第三层含义——仓促。
词根 capit 还连着 24 个词常用搭配
- 1.annual precipitation年降水量
- 2.heavy precipitation强降水
- 3.precipitation levels降水量
- 4.chemical precipitation化学沉淀
例句
- 1.
The region gets most of its precipitation in the winter months.
该地区大部分降水集中在冬季。
- 2.
Adding the reagent caused immediate precipitation of a white solid.
加入试剂后立即析出白色固体沉淀。
- 3.
The deal collapsed because of his precipitation in announcing it.
因为他仓促宣布,这笔交易告吹了。