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needlessness    
n. 不必要;多余



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    As of December 2025, the US military consisted of 2 81 million people worldwide, including 2 10 million military personnel and 715,212 civilians With the most recent numbers, the military is slightly greater than the population of Chicago, the country's third-largest city These forces are spread across six main service branches: the Army, Navy, Air Force, Marine Corps, Coast Guard, and Space
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