keep a calm sough

• vi. 保持安静(默不作声)

keep a calm sough的用法和样例：

例句

用作不及物动词 (vi.)

1. The prefect asked the students to keep quiet.
   级长叫学生们保持安静。
2. Would you be good enough to keep silent?
   请你保持安静好吗？