floatation of loan

例句：

1. 1.The boat floated on the calm water.
   船在平静的水面上漂浮。
2. 2. The balloon floated in the sky.
   气球在天空中漂浮。
3. 3. The weight of the object is determined by its buoyancy.
   物体的重量由其浮力决定。