标题: GWD-TN-19-Q6 求翻译 [打印本页] 作者: gamxiaoyuan 时间: 2011-7-30 10:32 标题: GWD-TN-19-Q6 求翻译 NASA’s methodical approach to the exploration of Mars has not yet answered the questions of whether biological life forms ever emerged on Mars and whether, presuming such life forms left fossil traces to begin with, those traces still exist in some moist recesses of the cold and arid planet. 请大家帮忙翻译下中间这个红色的插入语是什么意思？主要是begin with的意思不太明白？难道是“假设这种生命形态留下了化石线索以供人们探索”？作者: gamxiaoyuan 时间: 2011-8-3 20:21
没有人会么？作者: Tobelogical 时间: 2011-8-3 20:25
假设这些生命方式留有化石踪迹来开始研究
