without a trace

基本解释

Time always flies away like water and all the things will gradually be gone and slowly disappear some day, without a trace. So how about you?
時間縂是像流水一樣劃過我們的指尖，不畱下一點痕跡，那麽你是不是也會被帶走呢？
If you want new insights into yourself, you harness the power of countless observations of small incidents of change—incidents that used to vanish without a trace.
如果你想洞察自身，你可以在數不清的小事故——通常無影無蹤的小事故——的變化中觀測數據。
Those related researchers also said that when the citizen pressed the camera button, the UFO disappeared without a trace, so it was not an insect or a bird, even not a balloon.
相關人員表示說， “拍照的市民在按下照相機的快門後，不明飛行物躰便消失的無影無蹤。因此可以判定該物躰不是崑蟲或鳥類，也不會是氣球。”

He also produces the police drama about missing people called Without a Trace. And the Emmy award-winning reality TV show, The Amazing Race. Jerry Bruckheimer has won many awards during his career, including several Emmys,Oscars, Grammys and Golden Globes.
She called on Eritrea to clarify the whereabouts of 11 MPs who disappeared without a trace in September,2001.

In the heart of the French countryside, a young boy disappears without a trace.
NEWYORKER: Olivier Olivier
On the contrary, that unemployed army has disappeared without a trace--no doubt temporarily diving into nice, safe corporate careers.
FORBES: A Season For Surprises