But in the US, more than 500 people are known to have fallen ill with a mysterious lung disease after smoking e-cigarettes. Officials said hundreds of additional cases had been reported in the past week alone.
但在美国，有 500 多人因吸电子烟而患上了一种神秘的肺病。官员们说，仅在过去一周，就有数百起新增病例被报告。