gum·shoe /ˈgʌmˌʃu/ 套靴,膠底運動靴,刑警(vi.)悄悄走,祕密行走(a.)偷偷做的
gumshoe n 1: someone who is a detective [syn: dick, hawkshaw] 2: a waterproof overshoe that protects shoes from water or snow [syn: arctic, galosh, golosh, rubber]