[qīng tǔ]
say what is on one's mind without reservation; speak freely of one's thoughts [anxieties]; reveal one's sorrows
unbosom oneself
倾吐衷情
unburden oneself of one's all grievances
倾吐满腹苦水
bring out all kinds of things that lay buried deep in one's heart
把内心深处的话都倾吐出来