marl/mɑːrl/名词泥灰;泥灰肥料Higher slopes reveal widening seams of calcareous marl.在较高的山坡上,钙质泥灰岩的缝隙不断扩大。(用颜色不同的两股线拧成的)夹花线a grey marl sweatshirt灰色夹花线无领长袖衫想跟读,去练习