Definition
an issue or subject that causes persistent disagreement or conflict
争论之源
The piece of land has been a bone of contention between the family members.
这块土地一直是家庭成员之间的争议焦点。
The question of who should lead the project has been a bone of contention in their team.
谁应该领导这个项目一直是他们团队中的争议焦点。
The terms of the contract were a long-standing bone of contention during their negotiations.
合约条款一直是他们谈判中长期存在的争议焦点。