English Dictionary

marl

/mɑːl/

noun

A mixed earthy substance, consisting of carbonate of lime, clay, and possibly sand, in very variable proportions, and accordingly designated as calcareous, clayey, or sandy.

The construction workers used marl to strengthen the foundation of the building.

意味（1）

A mixed earthy substance, consisting of carbonate of lime, clay, and possibly sand, in very variable proportions, and accordingly designated as calcareous, clayey, or sandy.

... uneasie steps / Over the burning Marle, not like those steps / On Heavens Azure...