名词
中文翻译：水平
同义词：
['grade', 'level', 'rank', 'grading']
例句：
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1. The car's engine level is off.
汽车引擎的水平调得不对。
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2. The level of the river has risen due to heavy rain.
由于大雨，河流的水位上升了。
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3. The level of the ocean is affected by tides and currents.
海洋的水平受到潮汐和洋流的影响。