machine rifle的用法和樣例：
例句
用作名詞 (n.)
- I wish I were a soldier,disguising myself as a chameleon in the desert with my camouflage and rifle.
我希望，我是個士兵，穿上土黃色的迷彩服扛著衝鋒槍在沙漠里裝變色龍。 - A volley of automatic rifle fire could be heard.
一陣自動步槍的掃射聲傳了過來。 - The bandit who kidnapped the hostage with an automatic rifle was seized by police.
歹徒手持自動步槍綁架人質，被公安幹警拿下。
