ravellern.ravel的变形：ravel['rævəl]vt.使纠缠；使错综复杂：The baby raveled the reel of thread up.婴儿将那团线弄得乱七八糟。拆开；拆散(常与 out 连用)：You had better ravel a bit of the left-over cloth to mend the tear in your trousers.你最好拆散一小块碎布头来织补你的裤子。解开；理出…的头绪(常与 out 连用)：I can not ravel t