briefcases /ˈbri:fkeisiz/ 📖 中文释义 n. 公文[事]包( briefcase的复数形式 ) 🧩 词形变化 原形 briefcase 📘 English Definition(英文释义) n. a case with a handle; for carrying papers or files or books ← briefcase computer B 字母词表 briefed →