PMS

名词 pms:

1. a syndrome that occurs in many women from 2 to 14 days before the onset of menstruation
   同义词：premenstrual syndrome

名词 pm:

1. an examination and dissection of a dead body to determine cause of death or the changes produced by disease
   同义词：autopsy, necropsy, postmortem, post-mortem, PM, postmortem examination, post-mortem examination
2. a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium
   同义词：promethium, Pm, atomic number 61
3. the person who holds the position of head of the government in England
   同义词：Prime Minister, PM, premier
4. modulation of the phase of the carrier wave
   同义词：phase modulation, PM

1. The House (ie Members of the House of Commons) rose at 10 pm.
   下议院已於晚上10点钟散会。