短语词组短語guarding valve 防護閥resource guarding 資源保護行爲safe guarding 安全防護Equipment Guarding 設備監護;設備防護Life Guarding 一生守侯Guarding silently 安靜的守護著Guarding Window 護窗guarding management 保安琯理guarding decisions 防護決策 返回 guarding