9. Immediately John Snow told the astonished people in Broad Street to remove the handle from the water pump so it could not be used.

　　约翰·斯诺马上叫宽街上惊惶失措的老百姓拆掉水泵的把手，这样水泵就用不成了。

　　10. Only if you put the sun there did the movements of the other planets in the sky make sense.

　　只有当你把太阳放在中心位置上，天空中其它行星的运动才能说得清楚。

　　11. But only his new theory could do that.

　　看是只有他的新理论才能作出解释。

　　12. Yet Copernicus' theory is now the base on which all our ideas of the universe are built.

　　然而哥白尼的理论却是我们宇宙赖以建立的基础。