A dry stream channel that carries water only after rain.

• Common in arid regions; similar to a wash or wadi.

仅在降雨后有水的干涸溪沟或冲沟。

• 多见于干旱地区，类似干河床或冲沟。

A small natural stream; a brook or rivulet.

• May flow year-round.

小型天然水流；小溪或细流。

• 可能全年有水。