英汉词典

1. 突然的;骤然的;忽然的
    Sudden means happening quickly and unexpectedly.

    e.g. He had been deeply affected by the sudden death of his father-in-law...
           岳父的猝死使他十分伤心。
    e.g. 'I hope,' the stranger said, 'that the sudden change of venue did not inconvenience you.'...
           那位陌生人说：“我希望突然改变地点不会给您带来不便。”