containing too much careful detail or too many detailed parts

The book is spoiled by over-elaborate writing.

He refused most of the overelaborate meal, saying that he never ate much at lunchtime. 他拒绝了大部分过于精致的饭菜，说自己午餐时间从不吃太多东西。

to add too much information about something you have said, or to explain it too much

I don't question what they say as long as they don't over-elaborate the story. 只要他们不过度阐述这个故事，我就不会质疑他们说的话。

She does overelaborate from time to time and try to be too clever.