cumber英美n. 拖累,累赘;妨害v. 阻碍,妨害;使受苦过去分词:cumbered 现在分词:cumbering 复数:cumbers 过去式:cumbered 第三人称单数:cumbers GRE英英释义verbhold backSynonym:restrainencumberconstrain双语例句