modification
🇺🇸
/ˌmɑːdɪfɪˈkeɪʃn/
🇬🇧
/ˌmɒdɪfɪˈkeɪʃn/
a change made to something to improve it or make it better
The car needed a small modification to work properly.
這輛車需要一個小小的改進才能正常運作。