词汇	系是
释义	系是 xì shì是，乃是。
随便看	esophageal upper orifice esophageal valve esophageal variceai bleeding Esophageal variceal Esophageal variceal bleeding Esophageal varice bleeding Esophagitides,Reflux esophagitis Esophagitis Candida esophagitis dissecans superficialis Esophagitis medicamentosa esophageal varices esophageal varices bleeding esophageal varices hemorrhage Esophageal Varices ligation esophageal varices rebleeding esophageal varicosis Esophageal varicosity esophageal variees esophageal varix Esophageal varix bleeding Esophageal vaxices esophageal vein esophageal veins esophageal veinss