COLDCASE 什么意思？冰菓15集片尾曲最后出现过

冷案的意思，意思是原本很多人注意的案子变得没有什么人关注了

A cold case is a police investigation that was previously unsolvable, not enough evidence or what ever at the time of the initial investigation.
意思就是证据不足，悬而未决

"COLDCASE"可译为冷案，意思是指时间长久变得冷门的案件。