相关单词近義詞 vulnerability 易受攻擊, helplessness 無可奈何, powerlessness 無力, weakness 軟弱, frailty 脆弱, defencelessness 無防禦, unprotectedness 無保護臨近詞defense pact, defense, Defense Communication Satellite System, Defense Second Communication Satellite, Defense Communications Agency Circular, Defense Production Sharing Arrangement, Defense Finance and Accounting Service, Defense Air Transportation Association, Defense Industry Advisory Group Europe, Defense Contract Administration Service, Defense Acquisition Improvement Program, Defense Nuclear Facilities Safety Board 返回 defenselessness