- 
                曾谙
                [céng ān]
                
                                        Once Familiar means being intimately acquainted with something in the past implying the speaker ...
                
             
                        - 
                读懂昨天
                [dú dŏng zuó tiān]
                
                                        Indicates that the person has spent time understanding and reflecting on their past experiences ...
                
             
                        - 
                知心知意旧事重提
                [zhī xīn zhī yì jiù shì zhòng tí]
                
                                        It implies knowing deeply about something and old events come up again ; perhaps reminiscing reviewing ...
                
             
                        - 
                七分熟识
                [qī fēn shú shī]
                
                                        Slightly more than familiar implies knowing someone to some extent but not fully There remains room ...
                
             
                        - 
                相顾相识
                [xiāng gù xiāng shī]
                
                                        Seeing each other leading to recognition or mutual understanding The name signifies either becoming ...
                
             
                        - 
                初相遇终相识
                [chū xiāng yù zhōng xiāng shī]
                
                                        Meeting at first glance ending up familiar describes the journey of knowing someone from an initial ...
                
             
                        - 
                变熟以后
                [biàn shú yĭ hòu]
                
                                        This refers to becoming familiar or closer after initially knowing each other indicating that genuine ...
                
             
                        - 
                越来越熟悉
                [yuè lái yuè shú xī]
                
                                        Means getting more and more familiar Reflects growing knowledge or closeness regarding someonesomething ...
                
             
                        - 
                走进了才知道陌生
                [zŏu jìn le cái zhī dào mò shēng]
                
                                        It means only after getting closer did I realize how unfamiliar or estranged This implies an unexpected ...