1N-UNCOUNT 麻袋布;粗麻布Sackcloth is rough woven material that is used to make sacks. 麻袋布;粗麻布
He kept the club wrapped in sackcloth.
他一直用麻袋布包着棍子。
2N-UNCOUNT 忏悔;痛悔 If you talk about sackcloth or sackcloth and ashes you are referring to an exaggerated attempt by someone to show that they are sorry for doing something wrong. 忏悔;痛悔
He went on about his irresponsible behaviour, the dreadful effect it would have on his children and so on. It was all sackcloth and ashes.