查有聲字典,e.g.merriam-webster但它不是KKcambridge好像是用IPA?dictionary.cambridge.org/dictionary/english/dumpcambridge 的美式發音會標出flapping但音檔卻...dictionary.cambridge.org/dictionary/english/writerM-W音檔是flapping t但音標沒標出
http://www.merriam-webster.com/dictionary/writer