The recent Tsunami which devastated the coastal regions of the Indian Ocean reminded the human race of some very disturbing facts: we inhabit a very volatile planet, nowhere is entirely safe and despite our achievements in science and technology we still live ①at the mercy of nature.

    将印度洋沿海地区毁于一旦的那次海啸事件使人类想起了一些心烦的现实：我们居住在一颗极不稳定的星球上，没有什么地方是彻底安全的 ......