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3D illustration of trachea and air sacs in human lungs highlighting bronchitis and filled with phlegm.

搜元素提供国外优质的免版权矢量素材资源免费下载，该资源的中文名称是：3D illustration of trachea and air sacs in human lungs highlighting bronchitis and filled with phlegm.，英文名称是：3D illustration of trachea and air sacs in human lungs highlighting bronchitis and filled with phlegm.，该资源由网友上传，提供高速下载。