[mass noun]a very coarse, rough fabric woven from flax or hemp 粗平袋布,粗麻布;粗麻织品
常用词组 sackcloth and ashes
used with allusion to the wearing of sackcloth and having ashes sprinkled on the head as a sign of penitence or mourning (Matt 11:21) 悲痛;忏悔(穿麻衣且撒灰于头上为忏悔或哀悼的表示,见《马太福音》 11: 21)