名词
中文翻译：主要力量标准机器
同义词：
['primary strength', 'primary power', 'primary force']
例句：
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1. The primary forcebehind the success of this project is the team's dedication and hard work.
这个项目成功背后的主要力量是团队的奉献和努力。
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2. The primary force in this region is its natural resources.
这个地区的主要力量是其自然资源。
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3. The primary force behind the decision was the need for efficiency.
做出决定背后的主要原因是需要提高效率。