语法与词汇 15.These issues were discussed at length during the meeting. The underlined part means______. (2015-79)
【正确答案】 D
【答案解析】at length有“最终，终于”和“详尽地”两个意思，此句解释为“详细地，充分地”，更为妥当。故选择D选项。eventually和lastly都表示“最后”；subsequently意为“随后，接着”。