that is to say
1
也就是说, 换言之
used to introduce an explanation or clarification of a point just made
- The project must be completed by the end of the month, that is to say, within the next two weeks.
该项目必须在月底前完成，也就是说，在接下来的两周内。
- He enjoys outdoor activities, such as hiking and camping—that is to say, he prefers to spend time in nature.
他喜欢户外活动，比如徒步和露营——也就是说，他更喜欢在大自然中度过时光。
- The event will take place next Friday, that is to say, on the 20th of May.
活动将于下周五举行，也就是说5月20日。
- The software update will enhance security features, that is to say, it will improve protection against cyber threats.
软件更新将增强安全功能，也就是说，它将提高对网络威胁的防护。
- The company aims to expand its market share by targeting younger demographics—that is to say, individuals aged between 18 and 35.
该公司旨在通过瞄准更年轻的人口统计来扩大其市场份额—也就是说年龄在18至35岁之间的个人。