vanishes是什么意思？

vanishes

• v. 消失( vanish的第三人称单数 )，突然不见，不复存在，绝迹；

例句

• With this said, the old man vanishes out of sight. 老人话一说完, 就忽然不见了.
• If the circulation vanishes at one instant of time, it must vanish for all times. 只要环量在某一瞬间为零, 它就必须永远为零.
• When this tensor vanishes, the space is calleda flat. 当这一张量为零时,空间叫做平直空间.

柯林斯高阶英汉双解学习词典释义

• VERB
  消失;失踪;突然不见
  If someone or something vanishes, they disappear suddenly or in a way that cannot be explained.
  例句
  He just vanished and was never seen again... 他就这么消失了，再也没人见到过他。 The aircraft vanished without trace... 飞机消失得无影无踪。
• VERB
  (物种）灭绝;（传统）消亡
  If something such as a species of animal or a tradition vanishes, it stops existing.
  例句
  Near the end of Devonian times, thirty percent of all animal life vanished... 在泥盆纪末期，30％的动物物种都灭绝了。 ...all the species of birds that had vanished from Iowa. 艾奥瓦州所有消失了的鸟类物种