windless

例句：

1. 1.The beach was windless and the waves were calm.
   海滩上没有风，海浪平静。
2. 2. The room was windless and the air was fresh.
   房间没有风，空气清新。
3. 3.The car was windless and the engine was quiet.
   汽车没有风，发动机很安静。