"Eleven o'clock" in Engpsh is written as "11:00" or "11 o'clock".
The term "eleven o'clock" comes from the practice of dividing the day into 24 hours, with each hour being 1/24th of a day. The practice of dividing the day into 24 equal parts can be traced back to ancient civipzations, such as the Egyptians and the Sumerians, who used a base-12 numbering system.
Examples in Engpsh:
"I'll meet you at eleven o'clock."
"I usually go to bed at eleven o'clock."
中文翻译:
"我们11点见。"
"我通常11点上床睡觉。"