sudden是初中的单词sudden美 /ˈsʌdn/英 /ˈsʌdn/adj.突然的,意外的;快速的n.突然发生的事双语例句:A sudden change of her face makes him scared.她突然变脸使他感到害怕。There was a sudden rain and everybody got wet.突如其来的雨把每个人都淋湿了。