名词
中文翻译：主桅杆
同义词：
['mainmast', "mainsailbood例句：1. The mainmast is the tallest part of the ship's mast.（主桅杆是船的桅杆中最长的。）"]
例句：
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1. The mainmast is the tallest part of the ship's mast.
主桅杆是船的桅杆中最长的。
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2.The mainsailbood is the sail that extends from the mainmast.
主帆桁是从主桅杆延伸出来的帆。
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3.The crew had to repair the mainmast before they could set sail again.
船员们在再次扬帆之前必须修理好主桅杆。