一石二鸟
他用一封邮件就一石二鸟，既通知了客户又推广了新产品。
He killed two birds with one stone by sending one email that both notified the client and promoted the new product.
To accomplish two objectives with a single effort or action.
这款软件一石二鸟，既能提高效率又能降低成本。
This software kills two birds with one stone by both improving efficiency and reducing costs.
她选择在周末上课，一石二鸟，既能学习又能打工赚钱。
She chose to take classes on weekends, killing two birds with one stone by both studying and earning money.
Often used to describe efficient decision-making or resource allocation.
Related Phrases
Pro Tip
Usage Tip
Use 一石二鸟 when you want to emphasize cleverness or efficiency in achieving multiple goals. It’s less formal than 一举两得 and works well in casual conversations.
Gold Rule
Idiom Rule
一石二鸟 always implies a single action leading to two positive outcomes. Never use it for negative or neutral results.
Word Origin
Originates from the ancient Chinese strategy of throwing a stone to hit two birds in flight, symbolizing efficiency and cleverness. First recorded in historical texts during the Han Dynasty (206 BCE–220 CE).
Usage Notes
Commonly used in both spoken and written Chinese to praise resourcefulness. Avoid using in formal legal or technical documents where precision is critical.