[来去无踪 / 來去無蹤, lái qù wú zōng, ㄌㄞˊ ㄑㄩˋ ㄨˊ ㄗㄨㄥ]come without a shadow, leave without a footprint (成语 saw); to come and leave without a trace#120898[Add to Longdo]
[来无影,去无踪 / 來無影,去無蹤, lái wú yǐng, qù wú zōng, ㄌㄞˊ ㄨˊ ㄧㄥˇ, ㄑㄩˋ ㄨˊ ㄗㄨㄥ]come without a shadow, leave without a footprint (成语 saw); to come and leave without a trace[Add to Longdo]