幼时,外婆常常拉着我的手,轻轻地,如叹息般地吟“山中人兮芳杜若,饮石泉兮荫松柏。”这时,外婆因苍老而略显浑浊的眼却澄明起来,痴痴地凝视着远处,似乎那儿有那么一朵淡雅素净的小花,尚还含着几点晨露,在风中微微发颤。可是,在这只有砾石与风沙的火星上,到哪儿去寻得这样一枝花儿呢?这是公元2800年,所有的人类都已经从空气污浊,垃圾成山的地球撤离,来到了火星。外婆是最后一代曾经在地球上生活过的居民。 When I was young, my grandmother often took my hand, gently, as sigh sighs. “Mountain people Xi Fang Du Ruo, drinking stone spring shade pine and cypress.” "At this time, grandmother slightly cloudy eyes clear Up, journeying to gaze at the distant place, as if there was a flower of lightness and simplicity, still containing a few morning dew, trembling in the wind. But where is it to find such a flower on this gravel and sand-blown Mars? It was 2800 AD, when all humanity had evacuated from the polluted, trashy earth to Mars. Grandma is the last generation who once lived on earth.