undo (twisted, knitted, or woven threads) (使)解开,(使)松开(缠绕、编织物等) ■[no obj.](of twisted, knitted, or woven threads) become undone (缠绕、编织物等)解开;松开 part of the crew neck had unravelled. (毛衣)圆领部分脱线了。 ■unwind (something wrapped around another object) 打开,剥开(包裹物) he unravelled the cellophane from a small cigar. 他把玻璃纸从雪茄上剥了下来。
investigate and solve or explain (something complicated or puzzling) 弄清;解决;阐明(复杂问题) they were attempting to unravel the cause of death. 他们试图解开死亡之谜。 ■[no obj.]begin to fail or collapse 崩溃;瓦解;失败 his painstaking diplomacy of the last eight months could quickly unravel. 他八个月来的辛苦外交努力可在转眼间化为泡影。