float boat

例句：

1. 1.The kids were floating boats on the lake.
   孩子们在湖上漂浮着。
2. 2.She decided to float a boat down the river.
   她决定把船划到河里去。
3. 3.The boat was so heavy that it couldn't float very far.
   这艘船太重了，无法远行。