名詞 pm:

1. an examination and dissection of a dead body to determine cause of death or the changes produced by disease
   同義詞：autopsy, necropsy, postmortem, post-mortem, 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
   同義詞：promethium, atomic number 61
3. the person who holds the position of head of the government in England
   同義詞：Prime Minister, premier
4. modulation of the phase of the carrier wave
   同義詞：phase modulation

形容詞 pm:

1. after noon
   同義詞：post meridiem, p.m.

副詞 pm:

1. between noon and midnight
   同義詞：post meridiem, P.M.

1. There is no parking between 9 am and 6 pm.
   上午9時至下午6時禁止停放機(jī)動車輛。
2. The cast must all be on (the) set by 7 pm.
   所有演員必須在下午7時到達(dá)拍攝場地。
3. The first episode goes out next Friday evening at 8.00 pm.
   下星期五晚上8時播出第一集。
4. The lady at the tourist office told me it opened at 1 pm.
   旅行社的那位小姐告訴我下午一點(diǎn)開門。
5. At 9 pm the prisoners are locked in for the night.
   晚9時把犯人鎖進(jìn)牢房過夜。
6. If I remember rightly the party starts at 8 pm.
   我記得聚會是在下午8點(diǎn)開始。
7. Is the match on at 2 pm or 3 pm?
   比賽是下午2時還是3時開始?
8. She holds her surgery on Fridays at 6 pm.
   她星期五下午6時接待選民。

pm 也作 p-m
abbr.（略語）
Phase modulation.
Phase modulation.