Definition (限度)
within the limits of what is considered acceptable, logical, or practical.
合情合理；有分寸
Employees are free to choose their office attire, within reason.
員工可以自由選擇辦公室穿著，只要在合理範圍內。
You can buy anything you need, within reason.
你可以買任何你需要的東西，只要在合理範圍內。
We are willing to do anything within reason to ensure the project's success.
我們願意在合理範圍內做任何事，以確保專案成功。