可持续性不是一种选择,而是我们共同的责任。
Sustainability isn't an option; it's a responsibility we all share.
一个奇怪的事实是,在大西洋两岸发现了极其相似的动植物,但没有人对这一现象给出令人满意的解释。
Reality is a question of perspective; the further you get from the past, the more concrete and plausible it seems.
AdS/CFT对应是理解量子引力的有力工具。