回顾两国在该领域的互动，大致以北约启动东扩为分界点划分为合作与对抗的两个时期。

The interaction between them could be divided by the launch of NATO' s eastward expansion into two periods - cooperation and confrontation.

youdao

那样，您可以随意去除或修改不同的元素，而有希望并不去影响其他部分(当然，这要取决于您的关注点划分的合理程度)。

That way, you can chop and change different elements at will, hopefully without affecting the other parts (depending on how well your concerns are separated, of course).

youdao

协调点(事务划分)。

Coordination points (transaction demarcation).

youdao