occur suddenly

英 美
  • 突然想到
  • occur vi.发生;存在;出现;想到
  • suddenly adv.突然地
    1. Occurring suddenly or unexpectedly.
      突然发生的突然或出乎意料地发生的
    2. Occurring suddenly and severely. Used of a disease.
      急性的,暴发的突然且很严重的发生。用于疾病