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学霸导读 为什么意大利的比萨斜塔是斜的呢？让我们一起看看原因吧！
Why does the Leaning Tower of Pisa in Italy lean? It leans because of a mistake. It has leaned almost since the day the tower was b 1 .
In 1174, the people of Pisa, Italy wanted to build a bell tower. They wanted the tower to be the m 2 beautiful bell tower in Italy. The city also needed a bell tower because the church did not have o 3 .
As soon as the first floor of the building was finished, the tower started to lean. Builders tried to make the buildings s 4 again as they added more floors, but the leaning tower got w 5 as the tower grew.
It took about 180 years to finish the tower. Today, the Leaning Tower has eight f 6 . It is 54.5 meters tall, and it leans almost 4 meters to one side. The tower is also sinking into （陷入） the g 7 on which it was built. Every year, the tower leans another 1.5 cm.
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because of 因为
mistake
n.
错误
builder
n.
建筑工人
add
v.
增加
grow
v.
增长