the state of being or appearing to be actively engaged in an activity
an Islamic fundamentalist group in Pakistan that fought the Soviet Union in Afghanistan in the 1980s; now operates as a terrorist organization primarily in Kashmir and seeks Kashmir\\\'s accession by Pakistan
a humming noise
動詞 hum:
sing with closed lips
be noisy with activity
sound with a monotonous hum
make a low continuous sound
造句
A brief high-pitched humming or buzzing sound, such as that made by a swiftly passing object or a taut vibrating string. 尖嘯聲一種短暫尖銳的嗡嗡聲或滋滋聲，例如高速運動的物體和拉緊的震顫的線發出的聲音
The earth hums to me today in the sun, like a woman at her spinning, some ballad of the ancient time in a forgotten tongue. 今天大地在太陽光里向我營營哼鳴，象一個織著布的婦人，用一種已經被忘卻的語言，哼著一些古代的歌曲。
The only sound he heard was the hum of the machine. 他聽到的唯一的聲音就是那臺機器的嗡嗡聲。
A toy instrument with a membrane that produces a sound when a player hums or sings into the mouthpiece. 卡祖笛一種當吹奏者向吹口處低吟或哼唱時一個膜能夠發出聲音的玩具樂器