出处：按学科分类—语言、文字 中国对外翻译出版公司《汉英成语词典》第108页（223字）
自己做出使人没趣的事，例你既已知“落花有意，流水无情”，为何还苦苦纠缠，自讨没趣?
Don’t you know that love must be mutual?So why go on pestering her and asking for a rebuff，knowing that she has no interest in you．