往来

There is a lot of traffic in the streets.

In front of it is a pedestrian street, which is closed to traffic.

I know him, but I don't interact with him very often.

The two sisters had a close relationship.

I had little contact with her and didn't know much about her situation.

It is necessary to strengthen friendly exchanges between the young people of the two countries.

In recent years, the two countries have had frequent high-level exchanges and frequent exchanges of visits, and their relations are very good.