详细解释:vt. 阐明, 解决, 解开
vi. 散开
词型变化：
动词过去式:unraveled,unravelled过去分词:unraveled,unravelled现在分词:unraveling,unravelling第三人称单数:unravels,unravels英语解释：
动词 unravel:
become or cause to become undone by separating the fibers or threads of同义词：unknot, unscramble, untangle, unpick