liaise
/lɪˈeɪz/verb
no obj.
1- establish a working relationship, typically in order to cooperate on a matter of mutual concern（为双方合作而）建立工作关系, 联络：
she will liaise with teachers across the country.
她将与全国的教师建立联系。
1.1
liaise between
act as a link to assist communication between (two or more people or groups)（为加强沟通在两人以上或群体之间）联络：civil servants who liaise between the prime minister and departmental ministers.
在首相和各部部长之间进行联络的文职官员。
词源
1920s (originally military slang)： back-formation from LIAISON.