就无影无踪
Without a trace
以上为机器翻译结果，长、整句建议使用 人工翻译 。
托尼走得很快，不久就无影无踪了。
Tony walked so fast that he was soon out of sight.
youdao
转眼间他就无影无踪了。
He disappeared in a twinkling of an eye.
我一个朋友说他一路追我进了一个死胡同，可是我就无影无踪地消失了。
One of my friends said he chased me all the way into a dead-end alley, and that I would just disappear without a trace.
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