冷静的

例句：

1. 1. The baby is so calm in the car.
   宝宝在车里很安静。
2. 2. The old man sits quietly on the bench.
   老人安静地坐在长椅上。
3. 3. The room was filled with a sense of calm after the storm.
   暴风雨过后，房间充满了宁静的感觉。