foretopsail是什么意思

n.[船]前桅中桅帆

1. The crew quickly hoisted the foretopsail to catch the strong winds.（船员迅速升起中上帆以迎接强风。）
2. The foretopsail was torn in the storm, and they had to replace it with a spare one.（在暴风雨中，中上帆被撕裂，他们不得不用备用帆来替代。）

中上帆；大帆；大三角帆