1·The definition of a dragnet is a net that is pulled along the bottom of a river or lake to bring up anything that may lie there.
拖网的定义是一张网沿著河底或湖底拖拉，以起可能停留在那里的任何东西。
2·There are two wallet (badges) with the picture-identifications of two fictional detectives from the radio and television show Dragnet.
展品中有两枚带有身份证明 照片的皮夹徽章， 照片中是两位在电台和电视节目《拖网》中虚构的侦探。
3·The exhibits also show the interplay of the LAPD and Hollywood. There are two wallet badges with the picture-identifications of two fictional detectives from the radio and television show Dragnet.
展品中有两枚带有身份证明照片的皮夹徽章，照片中是两位在电台和电视节目《 拖网》中虚构的侦探。