名词
中文翻译：Unknown
同义词：
["摩擦，指物体表面相互接触产生阻力的过程。4. 例句：1. The governor was very frustrated by the lack of progress in the project.（州长对项目进展缓慢感到非常沮丧。）2. The car's engine is making a lot of friction with the gears.（汽车的引擎与齿轮之间产生了很多摩擦。）3. The friction between the two countries has been high recently.（两国之间的摩擦最近一直很高。）"]
例句：
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3. 同义词：摩擦，指物体表面相互接触产生阻力的过程。4. 例句：1. The governor was very frustrated by the lack of progress in the project.
州长对项目进展缓慢感到非常沮丧。
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2. The car's engine is making a lot of friction with the gears.
汽车的引擎与齿轮之间产生了很多摩擦。
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3. The friction between the two countries has been high recently.
两国之间的摩擦最近一直很高。