名词
中文翻译：水平
同义词：
['height', 'altitude', 'grade', 'degree', 'height', 'elevation']
例句：
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1.The level of the water is very low.
水的深度非常低。
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2. The level of theocean has been rising due to global warming.
由于全球变暖，海洋的水平面一直在上升。
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3. The level of the river hasdropped significantly since the flood.
洪水过后，河流的水平面大幅下降。