precipitate

• 形容行动过于仓促、未经充分考虑；也可指突然发生、来得很快。

Describes an action that is done too quickly or without enough thought; hasty.

1. Hasty or rashC1formal

   Done, made, or acting suddenly or without careful thought.

   轻率的

   • His precipitate decision to resign shocked everyone.
   • The company's precipitate expansion led to financial ruin.
   • She regretted her precipitate words as soon as she spoke them.

   同义词hastyheadlonghurriedimpetuousimpulsiverashrecklessunthinking

   反义词carefulcautiousconsidereddeliberatethoughtful

2. Sudden and rapidC1formal

   Happening very quickly or abruptly.

   突然而急促的

   • The precipitate decline in stock prices alarmed investors.
   • A precipitate change in weather forced the event indoors.
   • The precipitate fall of the government was unexpected.

   同义词abrupthastyheadlongprecipitousrapidsuddenswiftunexpected

   反义词deliberategradualslow

• 指从液体溶液中析出的固体物质，通常由化学反应产生；也可指沉淀过程或沉淀物本身。

A noun referring to a solid substance that is separated from a liquid solution, typically as a result of a chemical reaction.

1. Solid formed in a solutionC1formalscientific

   A solid substance that is formed from a solution during a chemical reaction and settles at the bottom.

   沉淀

   • The chemist observed a white precipitate forming in the beaker.
   • When the two liquids were mixed, a yellow precipitate appeared.
   • The precipitate was filtered and dried for further analysis.

   同义词depositsedimentsettling

• 动词，指使某事突然或提前发生、促成；也指使物质从溶液中析出沉淀。

A verb used to indicate the act of causing something to happen suddenly or sooner than expected, or to cause a substance to separate from a solution.

1. Cause to happen suddenlyC1formal

   To cause something to happen suddenly or sooner than expected.

   促成

   • The economic crisis was precipitated by the bank failures.
   • His reckless actions precipitated a disaster.
   • The argument precipitated their sudden departure.

   同义词acceleratebring aboutexpeditehasteninduceoccasionprovoketrigger

   反义词deferdelayforestallpostpone

2. Separate from solutionC1formalscientific

   To cause a solid substance to be separated from a liquid solution.

   使沉淀

   • Adding salt to the solution will precipitate the crystals.
   • The chemist observed the compound precipitate out of the mixture.
   • Cooling the liquid rapidly can precipitate the dissolved minerals.

   同义词depositsediment