ummKK [ʌm] /ʌm/發音感嘆詞1嗯、呃口語Umm, I'm not really sure how to answer that.嗯,我不太確定該怎麼回答。2嗯、這個嘛口語,表遲疑或不以為然Umm, are you sure that's a good idea?嗯,你確定這是個好主意嗎?