They use hoes and pickaxes to dig the muddy, rocky red soil.

他们用锄头和镐挖掘泥泞的、多石的红色土壤。

33. Rhizomes from one plant grow through the muddy soil and interlock with those of other nearby plants.

一株草的地茎穿透、包围它覆盖的泥土，并且和其他植株的地茎铰链在一起。

Long and strong toe bones, similar  to those found in modern shorebirds, suggested they have the ability  to walk in muddy or silty soil.

长而强壮的脚趾骨，类似于现代滨鸟的脚趾骨，表明它们有能力在泥泞或淤泥土壤中行走。