Definition
To an absolute and thorough degree; completely and fully.
完全地
After this renovation, the house is good and proper refreshed.
經過這次翻新，房子徹底地煥然一新了。
He fixed the old car good and proper, and it runs smoothly now.
他把這輛舊車徹底修好了，現在它跑得很順暢。
Only after ensuring all the details are in order can we say that the project is good and proper finished.
只有確保所有細節都處理好後，我們才能說這個項目徹底完成了。