Definition
To accomplish two different objectives with a single action.
一石二鳥
She killed two birds with one stone by picking up some groceries on her way to the gym.
她在去健身房的路上順便買了一些雜貨，一舉兩得。
Attending this seminar will kill two birds with one stone, providing training and networking opportunities.
參加這個研討會可以一舉兩得，既提供培訓又有社交機會。
He is killing two birds with one stone by learning French and preparing for his exams at the same time.
他正在一舉兩得地學習法語，同時準備考試。