现在的北美大陆和欧洲大陆大约在40亿年前是连接在一起的，在那时，加勒多尼亚山脉与现代的喜马拉雅山脉一样雄伟。

About 400 million years ago, when the present-day continents of North America and Europe were joined, the Caledonian mountain chain was the same size as the modern Himalayas.

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芝加哥律师卡尔·安德森一直在吃高纤维、低糖份的燕麦和葡萄干加麦麸作为早餐，并经常加上一个香蕉。

Chicago attorney Karl Anderson has been eating high-fiber, low-sugar oatmeal and raisin bran for breakfast, often with a banana.

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为了保持商店里买的鲜花新鲜，把每根花茎剪掉一英寸，然后加两勺伏特加和一勺糖。

To keep store-bought flowers fresh, snip an inch off each stem, add two teaspoons of vodka and one teaspoon sugar.

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But that little short hand there is doing exactly the same thing. It is adding that value into some digits and putting it back or signing it back into some digits. And I'll walk through that loop and when I'm done I can print out the total thing does. And if I do that, I get out what I would expect.

加上得到的这个数的,但是这个缩写声明其实是进行了同样的操作,它把我们得到的这个数加到一个数上面去,然后用和对这个数进行了重新赋值,在循环中会去遍历字符串，当完成循环后,程序会显示数字的总和，如果我运行，这个程序的话，我会得到我期待的结果。

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