1
a rotary
单数形式，泛指任何一台旋转式机器。
He bought a rotary for his workshop.
他为车间买了一台旋转式机器。
扶轮社；国际扶轮的分会
先理解核心含义，再看它在真实句子里的用法。
扶轮社；国际扶轮的分会
A club belonging to the international Rotary International community-service organization.
He bought a rotary for his workshop.
他为车间买了一台旋转式机器。
组成国际扶轮社运动的任何俱乐部。
Any of the clubs making up the international Rotary International movement for community service.
The mechanic specialized in repairing old rotaries used in classic cars.
这位机械师专门修理老爷车里使用的老式旋转式机器。
Many factories replaced their manual equipment with rotaries to save labor.
许多工厂用旋转式机器取代了手动设备，以节省劳动力。
The sound of the rotary starting up filled the workshop.
旋转式机器启动的声音充满了整个车间。
单数形式，泛指任何一台旋转式机器。
He bought a rotary for his workshop.
他为车间买了一台旋转式机器。
定冠词特指已知的特定机器。
The rotary in the corner is broken.
角落里的那台旋转式机器坏了。
复数形式，指多个旋转式机器。
These rotaries are very efficient.
这些旋转式机器效率很高。
Not this
The machine rotaries well.
Use this
The machine rotates well.
rotary是名词，表示旋转式机器，不能用作动词；应用动词rotate。
Not this
There are two rotary in the factory.
Use this
There are two rotaries in the factory.
rotary作为可数名词，复数形式为rotaries，需要加-es；不可用原形表示复数。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
加入扶轮社
Many business leaders choose to join a rotary in their city.
许多商界领袖选择加入他们所在城市的扶轮社。
当地的扶轮社
Our local rotary organizes an annual charity dinner.
我们当地的扶轮社每年组织一次慈善晚宴。
国际扶轮社
Rotary International supports service projects around the world.
国际扶轮社支持世界各地的服务项目。
创办扶轮社
The retired teacher helped start a rotary in her town.
这位退休教师帮助在她的镇上创办了一个扶轮社。
扶轮社社长
She was elected president of the rotary after serving as treasurer.
在担任财务主管后，她当选为扶轮社社长。
Use rotary naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想记忆：rotary 开头的 rot- 像 rotate（旋转），扶轮社的“轮”就像转动的轮子，带动社区服务。
语域：neutral 常见场景：service club newsletters、Rotary International publications、community event listings 该名词义项指“扶轮社”（国际扶轮的分会），多用于正式或中性的组织与公益活动语境，如俱乐部介绍、会议记录或社区服务报道；日常口语中较少单独使用。
Plural: rotaries.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.