他的演讲思路清晰，所有人都能轻松理解。

His speech was delivered with great ___clarity, making it easy for everyone to follow.

水晶酒杯的纯净度让香槟看起来闪闪发光。

The ___clarity of the crystal glass made the champagne sparkle brilliantly.

瑜伽帮助我在做决定时保持思维清晰。

Yoga helps me maintain mental ___clarity when making decisions.