线索

clue;lead;thread
那盘录像带录有确认凶手身份的一些重要的～。The videotape holds some vital clues to the identity of the killer./警方将追踪所有可能有用的～。The police will follow up all possible leads./作者娴熟地把情节的各种～串联在一起。The author skilfully draws together the different threads of the plot.