帆具

例句：

1. 1. The sailors need to check the sails before setting sail.
   水手们需要在启航前检查帆。
2. 2. The captain has ordered all sailboats to be inspected for safety reasons.
   船长已下令对所有帆船进行安全检查。
3. 3. The sailors are busy preparing the sailboat for a long voyage.
   水手们正忙于为长途航行准备帆船。