grooved drum iron roll有槽铸铁轧辊
drum-roll symphony鼓声交响曲
The Approaching Drum-Roll渔阳击鼓动地来;渔阳鼙鼓动地来
grooved drum roll凹槽辊
grooved drum roll breaker环槽滚筒揉布机
drum roll step擂鼓步
roll drum drier双转鼓式干燥机
twin-roll drum drier双转鼓式干燥机;翻译
twin-roll drum dryer双辊烘干机
N-COUNT（可数名词） A drumroll is a series of drumbeats that follow each other so quickly that they make a continuous sound. A drumroll is often used to show that someone important is arriving, or to introduce someone. 击鼓声
A long drumroll introduced the trapeze artists.
长长的击鼓声欢迎高空秋千艺术家们到场。