At this point, the price is converted from a string to a float.

现在，价格从一个字符串转换为一个浮点类型。

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This operation expects a string, to be interpreted as a ticker symbol for a stock, and returns a current quote for that stock, a float value.

该操作等待一个字符串，被解释为股票的报价机符号，然后返回当前该股票报价，一个浮点值。

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On one end of its string glorious colors float like rainbows; on the other end-grown-up kids swear that they "just want to get it flying!"

在风筝线的这头，五颜六色的线如同天边的彩虹；线的另一头是已经长大的小孩，他们信誓旦旦地说着：“只是想让它飞起来！”

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