With the intense focus of a predator surveying its prey, the detective meticulously examined the evidence at the crime scene.

prey 是名词，意思是"猎物"，指被其他动物捕食的动物。这个词来自古法语，原意是"被捕食的动物"。 prey 在这里比喻犯罪现场的物证就像被捕食者盯上的猎物一样，被侦探仔细审视。