A small pool of dirty water.

泥坑；水坑。

Clay, sand, etc., worked together with water.

泥浆；混土。

To make muddy.

使污浊。

To work water into (clay, and, etc.) so as to make a mixture through which water will not pass.

造成混土。

To line with such clay in order to make water-tight.

以混土填塞。

To stir (molten pig iron) so as to produce wrought iron.

搅动(铁浆)已练出熟铁。