To make the work easier, workers may have lubricated the paths either with wet clay or with the fat from cattle.

为了减轻施工难度，工人们可以用湿粘土或牛的脂肪来润滑道路。

youdao

The rooms had the clean earthy smell of wet clay.

这些房间有湿黏土散发出来的清新泥土气息。

youdao

For weeks, the Union soldiers worked on the canal. They dug through mud and wet clay.

几个星期以来，北方士兵一直在挖运河，他们不断地挖掘泥浆和粘土，许多人得病死了。

youdao

"It is like wet clay," they said.

VOA: special.2009.07.08

They dug through mud and wet clay.

VOA: special.2009.11.19

You can recognize clay because it is very shiny when it is wet.

VOA: special.2009.09.14

Put Nadal on a wet clay court with Djokovic or even Gulbis, Roger Federer, or Tomas Berdych and he could suffer.

WSJ: Roland Garros: Return of the French Resistance

When rolled across wet clay, the image would appear in relief, repeated more than once if the cylinder was rolled over any length.

WSJ: The Ur-Metropolis | Uruk | Pergamon Museum | By A.J. Goldmann

Observations from orbit have identified clay and sulfate minerals in the lower layers, indicating a wet history.

ENGADGET: NASA's Curiosity rover receives long-distance OTA update, 'brain transplant' on Mars