Classmates can be up late, or relax, but I still have to 7 o 'clock in the morning, running up and grooming later, she brought the "Three Kingdoms" go to class.

别的同学都可以睡懒觉，或者放松身心，可我还是要在早上7点钟跑起来，梳洗后带着本《三国演义》去上课。

youdao

We ate some sandwich - es and drank some milk at three o 'clock in the morning.

今天早上三点钟，我们吃了三明治，喝了牛奶。

youdao

Jack brought Mary home at three o 'clock in the morning, her father asked him to explain himself.

杰克凌晨三点钟才带玛丽回家，她的父亲要杰克说明原因。

youdao

"Three or four hours before I could fall asleep. I wake up three o'clock in the morning with the same stuff on my mind, tossing and turning.

VOA: standard.2010.05.04

They reached my house at three o'clock in the morning.

NPR: Judge Remembers Time on Top Secret Bench

It was three o'clock in the morning when Graham fired up the engine, and as the frost glistened on the young fruit, the giant rotor began to turn.

BBC: Graham Hewitt and his wind machine

Three o'clock in the morning, someone knocked on the door.

BBC: Lotfi Raissi transcript