[网络] 无法解释的胃肠道出血 gastrointestinal bleeding: 胃肠道出血acute gastrointestinal bleeding: 急性胃肠道出血acute lower gastrointestinal bleeding: 急性下胃肠道出血acute upper gastrointestinal bleeding: 急性上胃肠道出血bleeding of the gastrointestinal tract: 消化道出血下载手机词典可随时随地查词查翻译