AM, am, ante meridiem

• 午前； 上午

AM, am, ante meridiem的用法和样例：

例句

1. I am required to act before noon tomorrow.
   我必须在明天午前做出决定。
2. He has set his alarm clock for ten am.
   他把闹钟拨到上午十点钟。
3. The meeting will be next Monday at 10 am.
   会议将于下周一上午十点举行。