家务活是我们家一个主要的争执点。

Housework is a major ___a ___bone ___of ___contention in our house.

养老金改革已成为谈判中的一个争执点。

Pension reform has become ___a ___bone ___of ___contention in the negotiations.

边界的精确位置仍然是两国之间的一个争执点。

The exact location of the border remains ___a ___bone ___of ___contention between the two countries.