After detoxification, 278(27.88%) kept abstinent for less than 0.3 year, 4.69 persons (47.04%) for less than 1 year and only 48(4.81%) kept drug free for more than 2 years.是什么意思_After detoxification, 278(27.88%) kept abstinent for less than 0.3 year, 4.69 persons (47.04%) for less than 1 year and only 48(4.81%) kept drug free for more than 2 years.在线翻译_英语_读音_用法_例句