today, one can trace
at first sight, venice looks unbelievably permanent, an apparently complete renaissance (文艺复兴) city so untouched by time that there seems no reason why it should not go on forever. now the city is slowly sinking, as the clay on which it is built loses its elasticity (弹性) and the massive wooden piles rot (腐烂) away. flooding, such a rare occurrence a hundred years ago now happens several times each winter.
the damage caused by the flooding is immense, and the fabric of the ancient buildings is now being further damaged by pollution from the mainland town as well as by the wash produced by the constantly increasing number of motor boats that speed up and down the canals.
a further threat to
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