这块玻璃的透明度很高，几乎看不到任何瑕疵。

The ___clarity of this glass is remarkable, with almost no flaws visible.

这份报告的清晰度让所有读者都能轻松理解其要点。

The ___clearness of this report makes it easy for all readers to understand its key points.

她的解释以清晰明了著称，让所有听众都容易理解。

Her explanation is famous for its ___clearness, making it easy for all listeners to understand.