Officials have said the plan for Iran to export uranium for processing abroad under safeguards for its medical reactor could be a model for a broader deal to resolve concerns that its nominally-peaceful program is weapons-related.

VOA: standard.2009.10.24

There is a great deal of similarity here because it's just processing sound.

两者有很多相似的地方,因为毕竟都是声音

耶鲁公开课 - 聆听音乐课程节选