名词
中文翻译：凹面格栅
同义词：
['concave', 'recessed']
例句：
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1.The car has a concave grate in the front for better airflow.
这辆车的前部有一个凹面格栅，以改善空气流通。
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2. The old house had a concave grate that was difficult to remove.
那所旧房子有一个难以移除的凹面格栅。
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3.The chef used a concave grate to create a beautiful display of grilled vegetables.
厨师使用一个凹面格栅来创造一个美丽的烤蔬菜展示。