A headlong fall; a violent and swift descent.

猛落；急降。

Rashness; rash haste.

轻率；匆促。

The process of causing the solid part of a solution to separate form the liquid and fall.

【化】沉淀。

Moisture rain, snow, or hail.

【气】空气中之水气凝结物(如雨、雪、雹)。