Having an acid or sharp, biting taste, as vinegar or green fruit.

酸的；有酸味的(如醋及为熟之水果)。

Having the acid taste or smell of or as if of fermentation; rancid or turned.

发酵而酸的。

Disagreeable; cross.

坏脾气的；乖戾的。

To cause to become acid.

使变酸。

To make cross.

使乖戾。

To become cross.

变乖戾。

To turn from sweet to acid.

由甜变酸。

To ferment; spoil.

发酵；腐败。