2.D 【句意】对于酒后驾车，法律有明确规定。 【解析】副词词义辨析。extravagantly“挥霍无度地”；empirically“以经验为主地”；exceptionally“异常地；特殊地；例外地”；explicitly“明确地；明白地”。由关键词“law on drinking and driving”知这里指代“法律有明确规定”，由此知D项“明确地”正确。
【汉译英参考答案】 1. The rumor somehow went about that he used to shield smuggling. 2. If you get into trouble, I’ll do all I can to help you.
