名词
中文翻译：主要命令
同义词：
['principal command', 'primary command']
例句：
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1.The main command was to gather all the supplies we needed.
主要命令是收集我们所需的所有物资。
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2.The military commander had a main command that would be executed by all units.
军事指挥官有一个主要命令，将由所有单位执行。
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3.The main command of the ship is to navigate through the seas safely.
这艘船的主要命令是安全地航行在海上。