一天一点会员口语群5月招生火热进行中，详情请点击链接：招生简章｜"一天一点"会员口语群5月招生继续！ 　　Welcome to Daily Tips on Learning English. Today’s tip is on the pronunciation of the letter “t”.　　Of course the letter “t” is usually pounced “t”. But you may have noticed that in fluent speech, native speakers sometimes pro...