体会know(or learn)from experience;realize
这方面他们是深有～的。They knew this very well./谈谈我个人的～。I’ll say a few words about my personal experience(or understanding)./你参加了这次讨论会，有什么～？What do you think of the symposium?/你最近的出访有何～？What have you learnt from your recent visit?/深有～ have an intimate knowledge of sth |