marl

n [U] soil consisting of clay and lime, used as a fertilizer 泥灰（用作肥料）.

marker, market, market garden (Brit) (US truck farm), market hall, market price, market research, market share, market town, market value, market-day, market-place, marketability, marketable, marketeer, marketing, marketplace, marking, marking-ink, marksman, marksmanship, marlin, marmalade, marmoreal, marmoset, marmot, maroon, marque, marquee, marquetry, marquis, marquis (also marquess), marram, marriage, marriage certificate legal, marriage guidance, marriage licence, marriage lines, marriage of convenience, marriageability, marriageable,