to tell or include all the facts about something

详细说明，仔细介绍

I won't go into detail over the phone, but I've been having a few health problems recently.

我在电话里就不细说了，但最近我的身体一直有些不舒服。

I will not go into detail in the article, since it is quite rare ( in my experience) that it is necessary to do this.

因为这种情况很少见(根据我的经验)，我就不在这详述了。