1. He was able to locate his relatives through the instrumentality of the police. 
   靠警察的帮助，他找到了他的亲属。
2. Through the instrumentality of the police he was able to locate his relatives. 
   靠警察帮忙，他找到了他的亲属。
3. The means or mode of acting; instrumentality. 
   手段行动的方法或方式；媒介
4. a means or instrumentality for communicating. 
   用于联系的方法或手段。
5. an instrumentality invented for a particular purpose. 
   为了特定的目的而发明的工具。

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