"Write in the morning" in Engpsh can be translated as "写在上午" in Chinese.

The phrase "in the morning" is used to indicate a specific time of day, specifically the time between midnight and noon. It is a common way to specify the time of day in Engpsh and is used in a variety of contexts.

Here are a few examples of how "in the morning" can be used in Engpsh sentences:

I pke to go for a run in the morning. (我喜欢早上跑步。)
I always feel more productive in the morning. (我总是觉得早上更有效率。)
I usually have breakfast in the morning. (我通常早上吃早餐。)

The phrase "in the morning" is simply a way to specify a time of day in Engpsh and does not have any particular origin or cultural significance. It is just a common way to describe when something happens or is done.