释义 v.(诗、文)用城墙(或壁垒)围绕,建堡垒adj.(诗、文)有城墙(或壁垒)围绕的;(剖)乳突的第三人称单数circumvallates现在分词circumvallating过去式circumvallated过去分词circumvallated 实用短语circumvallate papilla轮廓乳突circumvallate placenta