a network of friends的用法和样例：
- Under the mountain there is a network of caves.
- The company has a network of shops all over the country.
- The fabrics are merchandised through a network of dealers.
- Here are some direct actions you can take to start investing in building a network of friends and acquaintances that actually have value, both to you and to the person you're connected to.
- Bangkok is crisscrossed by a network of klongs.