frigate的复数形式怎么写

frigate的音标：frigate的英式发音音标为：['frɪgət]frigate的美式发音音标为：['frɪɡɪt]...

An enemy frigate bore down on the sloop.一艘敌驱逐舰向这只护航舰逼过来.The frigate is on the stocks in a British yard.那艘护航舰现在一家英国造船厂中建造.The frigate made for the open sea.那艘巡防舰开向大海....

n.护卫舰，快速舰船...