Some background: Most of the world's major currencies "float" against one another. That is, their relative values move up or down depending on market forces.

背景资料：大多数世界主要货币相互“浮动”，也就是说，这些货币的相对价值根据市场力量上下浮动。

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A floated box is shifted to the left or right until its outer edge touches the containing block edge or the outer edge of another float.

浮动的框不在流内，它会尽量去靠左(右)，直到外边缘碰到包含框的边缘或是另一个浮动框的边缘。

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Let it float up another year or so over the next 30 years, adjust Medicare from 65 to 67.

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If another Middle East country were to revalue or float its currency, assets denominated in that currency would automatically appreciate against the dollar.

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