C2 noun /ˌpɜːrspɪˈkjuːəti/
perspicuity
清晰度
Meaning
Clarity and ease in speech or writing; the quality of being clearly expressed.
Example
The perspicuity of his lecture made it easy for students to understand complex topics.
他的讲座的清晰度让学生们很容易理解复杂的课题。