出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第7页（332字）
①形容声名地位突然高升，例他发表了十年研究结果的论文之后，就平地一声雷，突然声名大噪。
After his ten-year research paper was published，he bccame known oveinight
②亦比喻突然发生重大事件，例这项发明的公布真是平地一声雷，全国为之震惊。
Likea bolt out of the bluc，the announce ment of this discovery amazed everyone．