Trust between two people is a 'two-way street'. [=trust requires effort from both people]
Communication is a 'two-way' process.
a 'two-way' street
(..) it will take to find the killer? Right now the killer is being surrounded by a web of deduction... ...forensic science and the latest in technology... ...such as two-way radios and e-mail. Assign a man to be his driver who can report on his whereabouts at all times. What kind of man? (..)2006 The Pink Panther