The complications of duodenal ulcer that require surgical management are hemorrhage , perforation, obstruction, and intractability.十二指肠溃疡需外科治疗的并发症是出血、穿孔 、 梗阻和顽固性.We can admit the intractability of depravation, and still ...

n.难驾驭，棘手...

intractability的音标：intractability的英式发音音标为：[ɪnˌtræktə'bɪlətɪ]intractability的美式发音音标为：[ɪnˌtræktə'bɪlətɪ]...