寒暄后沉默很久转身后不敢开口
[hán xuān hòu chén mò hĕn jiŭ zhuăn shēn hòu bù găn kāi kŏu]
Means 'after small talk, silence for a long time, then turned away, too scared to speak.' It depicts a somewhat hesitant situation when interacting with someone, perhaps hinting at unspoken secrets or unsolvable situations.