pivotal

US /ˈpɪv.ə.t̬əl/
UK /ˈpɪv.ə.t̬əl/
"pivotal" picture
1.

關鍵的, 樞紐的, 重要的

of crucial importance in relation to the development or success of something else

:
The discovery of penicillin was a pivotal moment in medicine.
青黴素的發現是醫學上的一個關鍵時刻。
Her role in the project was absolutely pivotal.
她在專案中的作用絕對是關鍵的。