luculent

The professor's explanation was so luculent that even beginners could understand the complex theory.

用法提示：luculent 在这里用作形容词，表示‘清晰易懂的’，修饰 explanation。

Her luculent writing style made the scientific article accessible to a general audience.

用法提示：luculent 用作形容词，修饰 writing style，强调文字透明易懂。

The instructions were not luculent enough, so many users made mistakes while assembling the furniture.

用法提示：luculent 用作形容词，与否定形式连用，表示‘不清楚的’，描述 instructions 的清晰度。