a fortiori

adv.with greater reason; for a still stronger, more certain reason

1. If he can run a mile in 6 minutes, a fortiori he can finish a 5K race in under 30 minutes.
   如果他能用6分钟跑完一英里，那么更有理由相信他能在30分钟内完成5公里赛跑。
2. Given that she has a master's degree in engineering, a fortiori she is qualified for this project.
   鉴于她拥有工程学硕士学位，更有理由相信她有资格参与这个项目。