a.md

• a
  • 发音
    • 英 /ə; eɪ/
    • 美 /ə; e/
  • 词义
    • art. 一（个，件⋯⋯）
      • used to show that you are talking about someone or something that has not been mentioned before, or that your listener does not know about
  • 例句
    • We have a problem. 我们遇到了一个麻烦。
    • There was a hole in the fence. 篱笆上有一个洞。
    • Suddenly they heard a loud bang. 他们突然听到砰的一声巨响。
  • 补充