hush up 闭嘴
keep quiet 保持安静
silence 保持沉默
A: Did you hear the hushing sound in the distance?
A：你听到远处传来的沙沙声了吗？
B: Yes, it sounds very relaxing.
B：是的，听起来非常放松。
1) 使安静的行为
2) 声音变小的过程
3) 寂静或平息的状态
1. 使安静，使沉默
noun
1. the act of making or becoming quiet or silent
Synonym: silencing, quieting