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    a.m.

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    a.m.
    a.m. (also am British English) /ˌeɪ ˈem/
     Date: 1700-1800
     Language: Latin
     Origin: ante meridiem 'before noon'
    (ante meridiem) used to talk about times that are after midnight but before midday ⇨ p.m.:
        Work starts at 9 am.


    🔑 a.m. (NAmE also A.M.) BrE /ˌeɪ ˈem/ 🔊NAmE /ˌeɪ ˈem/ 🔊 abbreviationbetween midnight and midday (from Latin 'ante meridiem') 午夜至正午，上午，午前（源自拉丁语 ante meridiem）◆It starts at 10 a.m. 上午 10 点开始。🔊🔊  ➡  compare p.m.