vanish/ˋvænIʃ; ˈvænIʃ/v [I] to disappear suddenly, especially in a way that cannot be easily explained〔尤指难以解释地〕突然不见﹐消失: When I looked again, he’d vanished. 等我再看时﹐他已经不见了。+from The bird vanished from sight . 那鸟儿消失不见了。The smile vanished from her face. 她脸上的笑容消失了。The ship vanished without trace (=disappeared, leaving no sign of what had happened to it). 那艘船消失得无影无踪。