abbr. 健康和使用监控系统（Health and Usage Monitoring System）
英文释义
n the state of being or appearing to be actively engaged in an activity
n 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
n a humming noise
v sing with closed lips
v be noisy with activity
v sound with a monotonous hum
v make a low continuous sound