the single biggest / greatest etc used to emphasize that you are talking about the one thing that is the biggest, greatest etc最大的/最伟大的等:•Cigarette smoking is the single most important cause of lung cancer.抽烟是导致肺癌的最重要的原因。•Tourism is the country's single biggest earner.旅游业是这个国家最大的收入来源。 |