First, the expression must match all letters that need to be capitalized.

首先，表达式必须匹配所有需要大写的字母。

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S. dollars in bad loans will need to be written off or re-capitalized.

我们估计在不良贷款中约有750亿美元贷款需要注销或重新资本化。

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matches[0], in this case, represents the letter that needs to be capitalized. All of this can now be put together using the preg_replace_callback function

$matches[0]在这里代表了需要被大写的字母。

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Desmond Lachman, a fellow at the American Enterprise Institute in Washington has another, simpler, solution: Just require mortgage originators to be sufficiently capitalized and to hold at least a portion of the mortgage until maturity.

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In computing alternative minimum taxable income, research and development costs have to be capitalized and amortized over ten years if you are not materially participating in the activities.

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Some argue that research and development costs are investments for the future, the same as a new plant, and ought to be capitalized as assets and written down over a period of time.

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