day tradingglossary / day trading The act or practice of buying and selling stock shares or other securities on the same day, esp. over the Internet, usu. for the purpose of making a quick profit on the difference between the buying price and the selling price. 词条贡献者 译员Joanne,亚洲顶尖法学院国际贸易专业,擅长翻译涉及媒体、体育和娱乐领域的法律文件。