a bone of contention
US /ə ˌboʊn əv kənˈten.ʃən/
UK /ə ˌboʊn əv kənˈten.ʃən/

1.
punca perselisihan, isu pertikaian
a subject or issue over which there is continuing disagreement
:
•
The division of assets became a bone of contention during the divorce proceedings.
Pembahagian aset menjadi punca perselisihan semasa prosiding perceraian.
•
The new parking policy has been a bone of contention among residents.
Dasar tempat letak kereta baharu telah menjadi punca perselisihan di kalangan penduduk.