afloat joining ship sections

例句：

1. 1.The boat was afloat in the calm sea.
   船在平静的海面上漂浮。
2. 2.The ship is afloat on the open ocean.
   这艘船在广阔的海洋上漂浮。
3. 3.The balloon drifted afloat in the sky.
   气球在空中飘浮。