defendv.防守;防护;辩护
defend one's faith苦味尸
Defend and control防控
defending function卫
defend arable land保护耕地
defending in place就地防御
defend independence捍卫独立
defend interests of捍卫 ... 的利益
defend the frontier镇守边疆
defend installation跑车防护装置
defend successfully成功地保卫