mainmast

• 指帆船上最主要或最高的桅杆，通常位于船的中部或前部，适用于有两根或以上桅杆的帆船。

A noun referring to the principal or tallest mast on a sailing ship that has two or more masts.

1. Chief mast of a sailing vesselC1formal

   The principal mast on a sailing ship that has two or more masts, typically the tallest and most important.

   主桅

   • The sailors climbed the mainmast to adjust the sails.
   • The mainmast of the galleon was struck by lightning.
   • During the storm, the mainmast cracked under the pressure.