Estelle kept a photograph of her mother in a silver frame on the kitchen mantelpiece.埃丝特尔把母亲的一张镶银框的照片挂在厨房壁炉台上。This paper discusses a formal descriptiontechnique based on Estelle for protocol.本文讨论基于Estelle的协议形式描述技术.An app...

n.埃斯特尔(f.)...

Estelle的音标：...