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we can't stop an earthquake(地震), but we can do things to make sure they don't destroy(毁坏) whole cities. first, it is not a idea to build houses along lines where the of the earth's plates(板块) join together. Second, if you think there be an earthquake, it is better to build houses on rocks , not on . Third, you must make the houses as as possible. Weak buildings will fall down in an earthquake, but strong ones may Scientists are that one day an even bigger earthquake will hit the part around San Francisco(旧金山) . They call it " the big one ". However, people today are still building more .The population in and around San Francisco is now ten more than it was in 1906.This means that there is another earthquake, a great many houses and buildings will be destroyed.
