来自拉丁语placate,安抚，安慰，词源同please,placate.引申词义安抚的，平静的。

1. Marcus remained placid in the face of her outburst.

马库斯面对她的发作保持平静。

2. the placid waters of the lake

平静的湖水

3. He was a plump, placid boy.

他是一个胖乎乎的文静的男孩.

4. The waters darkly glistened ; at times feeding fish broke the placid surface.

湖水在黑暗中发光,水面上时时有鱼的唼喋声.

5. The placid waters stirred violently , and a loud noise broke the stillness.

平静的水面被扰乱了, 湖里起了大的响声,荡漾在静夜的空气中许久不散.