大平底船

例句：

1. 1. The big flat-bottomed boat was used for fishing.
   这个大型平底船用于捕鱼。
2. 2. The big flat-bottomed boat is a symbol of strength and endurance.
   这个大型平底船象征着力量和耐力。
3. 3. The big flat-bottomed boat was the fastest vessel in the fleet.
   这个大型平底船是船队中最快的船只。