grey ghostWiktionary 原文词源说明(parking inspector): Reputedly a reference to the grey uniforms once worn, the term remaining even though the uniforms have changed.释义（英文）名词 Noun(Australia, Melbourne, Sydney) A parking inspector, a person issuing tickets fining vehicles parked illegally or for too long.(Australia) The bonefish species (Albula argentea, syn. Albula neoguinaica).