thereby

英 /ˌðeəˈbaɪ/ 　美 /ˌðerˈbaɪ/

She sealed the jar tightly, thereby keeping the biscuits fresh.

她把罐子封得严严实实，从而让饼干保持新鲜。

Cities can expand public transport networks, thereby reducing traffic congestion and improving air quality for residents.

城市可以扩展公共交通网络，从而缓解交通拥堵并改善居民呼吸的空气质量。

搭配

thereby reducing costs 从而降低成本thereby improving efficiency 从而提高效率thereby enabling 从而使……成为可能

常用逗号加thereby doing，说明前述行为的结果。