simplicity

简单、简易、简明

The beauty of this recipe lies in its simplicity.

这道食谱的优点就在于做法简单。

朴素、简朴

She admired the simplicity of the old farmhouse.

她很欣赏那栋老农舍的朴素风格。

天真、单纯旧式

He answered with the simplicity of a small child.

他回答时带著小孩子般的天真。

为求简便、为了方便说明

For simplicity, we will assume the costs stay fixed.

为求简便，我们假设成本维持不变。