[] a part of a market such as a particular industry or group of customers市场板块◆The table presents a revenue breakdown by market sector.这表格显示了各市场板块的收益划分。◆Key market sectors include IT, telecommunications, finance and insurance.主要的市场板块包括信息技术、电讯、金融和保险。◆You need to position yourself in your target market sector.你必须在你的目标市场板块进行定位。➡sector