duì / yú / shì / gù / yuán / yīn / zhuān / jiā / men / de / yì / jiàn / liǎng / qí / shàng / wèi / xíng / chéng / gòng / shí对于事故原因,专家们的意见两歧,尚未形成共识。Experts disagree about the cause of the accident, and no consensus has been reached.