through which which 在里指代什么?
问题描述：
through which which 在里指代什么?
On the deference end, Vietnam is signing a series of agreements with China on defense and offshore oil exploration.
Avoiding conflict in an area through which so much global commerce passes is critical, U.S. business leaders say.
答
指代前面的签署协议 signing a series of agreements on defense and offshore oil exploration.
就是在一个地区通过这种方式避免冲突