通信网络

communications network

to go through / to know well / (suffix) expert / to connect / to communicate / open / to clear / classifier for letters, telegrams, phone calls etc

classifier for an activity, taken in its entirety (tirade of abuse, stint of music playing, bout of drinking etc)

to correspond (by letter etc) / to communicate / communication

letter / mail / CL:封[feng1] / to trust / to believe / to profess faith in / truthful / confidence / trust / at will / at random

net / network

Internet

network (computing, telecommunications, transport etc)

small net

net-like object / to hold sth in place with a net / to wind / to twist / (TCM) channels in the human body

cell phone network