背靠背bèikàobèi 1.背部靠着背部{back to back}: 他俩~地坐着。{They sat back to back.} 2.指不当着有关人的面(批评、揭发检举等){(criticize, expose, report, etc.) through an intermediary or without facing the concerned person}: 为了避免矛盾激化,先~给他提些意见。{In order to avoid sparking off antagonism, let's make back-to-back comments on his conduct.}‖也说also背对背{bèiduìbèi}。