The act of unfolding or developing.

展开；发展。

The thing developed or evolved.

发展之事；进化之物。

Ordered movement, as of troops in marching.

(常用复数)【夸】有秩序之行动(如军队之行进)。

A process in which something is set free, as a gas.

发出；放出(如气体)。

The process of extracting a root.

【数】开方。

The gradual development of higher forms of life from lower; also, the theory concerning this development.

【生物】演化；进化；进化论。