A mass of condensed water floating in the air.

云。

A volume of smoke or dust.

一片烟尘。

A dimmed spot, as in marble.

(大理石等之)瑕斑。

Anything threatening in aspect, or casting suspicion on one.

招致疑惧、不快、耻辱之事；疑点。

Anything that moves in or like a mass, as many arrows or locusts in flight.

飞掠过的一群(如密集的箭或蝗虫)。

To cover with a mist or cloud.

使满布云或雾。

To make gloomy.

使阴暗。

To blacken; sully.

使黑；染污。

To cover with variegated spots.

布满斑点。

To grow cloudy.

起云。

To become downcast.

变阴沉。