1. The moon watched from the sky behind the clouds as the stars blinked their eyes in fatigue. Everything is now in slumber, not a single sound nor a single movement can be seen or heard.

2. She was as quiet as a mouse. I didn't even know she'd come in.

3. Above them an eagle circled in noiseless flight.

4. After a night of fighting, the streets are now calm.

5. It's so quiet without the kids here.

6. Quietude is the crown of life.

7. The summer came, the evening fell, and the concert began. I sat quietly on the balcony, ready to attend a lively music feast on summer night. You see, the starry night sky is the background of the music stage. Close your eyes and feel the summer breeze, how comfortable it is!

这些句子都描绘了安静、宁静的场景，适合用来表达内心平静或描述一个静谧的氛围。