enunciate
verb formal uk/ɪˈnʌn.si.eɪt/ us/ɪˈnʌn.si.eɪt/
(PRONOUNCE)
[ I or T ]清楚地念（字）;清晰地发（音）
to pronounce words or parts of words clearly
He doesn't enunciate (his words) very clearly. 他（说话）发音不是太清晰。
(EXPLAIN)
[ T ]宣布，发表;阐明，表明
to express and explain a plan or principle clearly or formally
In the speech, the leader enunciated his party's proposals for tax reform. 在演讲中，这位领导人阐明了该政党的税收改革计划。