Also, some person should serve as go-between or matchmaker to bring a natural acculmation to both parts.

同时，一定要有中间人或媒人来见证双方的相互了解。

youdao

These women work tirelessly to feed and bathe our nation's senior citizens, serve as a go-between with family and doctors, count medication, even take care of pets, and yet they are denied basic wages, let alone benefits, worker protections and pathways to citizenship.

CNN: Aging boomers need health care law