她对这个项目计划做了详细的阐述。

She provided a detailed ___elaboration of the project plan.

这份报告是对市场趋势的详细分析。

This report is an ___elaboration of market trends with careful analysis.

她简单的解释逐渐变成了一段复杂的详述，包含了各种不必要的细节。

Her simple explanation gradually turned into a complex ___elaboration with many unnecessary details.