短语词组用作名詞 (n.)動詞+～aim 〔point〕 a rifle 瞄準目標assemble 〔dis〕 a rifle 組裝〔拆卸〕步槍fire a rifle 開槍operate a rifle 操作步槍形容詞+～automatic rifle 自動步槍hunting rifle 獵槍名詞+～air rifle 氣槍～+後置定語rifle carrying far 射程遠的步槍介詞+～range of rifle 步槍的射程soldier with rifle 背著步槍的士兵短語 返回 rifles