soundbite
noun [ C ] uk/ˈsaʊnd.baɪt/ us/ˈsaʊnd.baɪt/
（政治家演讲中被新闻报道反复引用的）讲话片段，妙语
a short sentence or phrase that is easy to remember, often included in a speech made by a politician and repeated in newspapers and on television and radio
Most politicians want to master the art of the soundbite. 大多数政客都想掌握纯熟运用短句妙语的能力。