s. marked by absence of sound
s. implied by or inferred from actions or statements
s. not made to sound
s. having a frequency below or above the range of human audibility
a. 沉默的, 安静的, 无声的, 静止的
[医] 静止的, 无症状的
1. The library is a silent place for studying.
图书馆是一个安静的学习地方。
2. Please be silent during the movie.
请在电影放映期间保持安静。
3. She gave him a silent nod to agree.
她默默地点头表示同意。