hum是什麽意思是：動詞，哼(曲子)、發嗡嗡聲、活躍、繁忙；名詞，嗡嗡聲、嘈雜聲；感嘆詞，哼！（表示輕蔑、躊躇、懷疑等）。
第三人稱單數： hums；現在分詞： humming；過去式： hummed；過去分詞： hummed。
牛津詞典解釋：
1、哼（曲子） to sing a tune with your lips closed.
例：She was humming softly to herself.
2、[V]?發嗡嗡聲?to make a low continuous sound.
例：The computers were humming away.
3、V]?活躍；繁忙 to be full of activity.
例：The streets were beginning to hum with life.
例句：
1、Instead?of?talking,?he?began?to?hum?one?of his?songs.
他不再說話，而是哼起了壹首歌。
2、I?knew?it?was?you?The?moment?we?met?There was a?buzz?in?the?air?A?song?in the? wind?A?hum?in my?heart.
我知道那就是妳，我們相遇的瞬間，空中嗡嗡的響聲，風中飛揚的歌聲，心中激動的***鳴。
3、Hum,?what?you?say?make?sense.?But?you?know,?I?still?have?to?ask my parents for pocket money, and?I?hate?to?do?so?at?this?age.
嗯，妳說得有道理。但是妳知道的，我仍然要跟我的父母拿零用錢，都這麽大了，我討厭做這種事。
4、you?know,?she's?unlike?anyone?we?have?ever?read?about,?seen?before and?she'ssort?of,?hum.
妳知道，她不像我們所了解的任何人，曾經看到過的，她是種，哼。
5、Take it?a?step?further?and?hum?"Om" as?you?breathe?out?if?you?feel?like?it.
呼吸更深入壹步時，如果妳喜歡，可以在呼氣時發聲“噢嗯”。