at quiet
平靜地,平穩地
Qui·et n.
1. The quality or state of being quiet, or in repose; as an hour or a time of quiet.
2. Freedom from disturbance, noise, or alarm; stillness; tranquillity; peace; security.
And join with thee, calm Peace and Quiet. --Milton.
At quiet, still; peaceful.
In quiet, quietly. “ I will depart in quiet.” --Shak.
Out of quiet, disturbed; restless. [Obs.] “She is much out of quiet.”