WHIM
💡🎲🌪

Example

On a whim, she booked tickets to Japan last night.

她一时兴起,昨晚订了去日本的机票。

Definition

A sudden desire or change of mind; a capricious notion.

突然的念头或转变主意;一时的心血来潮。

A vertical drum or capstan used in mines for hoisting.

矿井用的垂直滚筒/绞车,用于提升矿石或水。

To act capriciously; to be seized by a whim.

反复无常地行事;一时兴起而行动。

Initialism: warm–hot intergalactic medium in cosmology.

缩写:温热星系际介质(宇宙学术语)。