凌晨4点用英语怎么说

"Four o'clock in the morning" 用英语表示为 "four o'clock in the morning" 。

其中 "o'clock" 是英语中表示时间的词汇，来源于古英语中的 "of the clock"，后来缩写为 "o'clock"。

例句：

I usually wake up at four o'clock in the morning. (我通常凌晨4点醒来)
The store opens at four o'clock in the morning. (商店凌晨4点开始营业)
I always feel tired at four o'clock in the morning. (我总是在凌晨4点感到疲倦)