slough/slʌf/动词(某些动物)蜕(皮)Snakes slough their skin regularly.蛇定期蜕皮。/sluː/名词悲伤绝望She seems unable to pull herself out of this deep slough of self-pity.她似乎深陷于这种自怜自艾的悲伤状态,无法自拔。泥沼,泥淖;沼泽想跟读,去练习