虽然现有标准并未提供完整的解决方案，但更为明智的方法是尽可能地对其加以利用，并随后扩展其功能，而不要使用自定义解决方案完全将其替换。
When they do not provide the complete solution, it is wiser to use them as far as they are useful and then extend their capabilities, rather than replace them entirely with custom solutions.
可以将它用作占位符来存储字符串值，稍后在会话处于激活状态时对其加以利用。
It can be used as placeholder to store the string values, which can be used later until the session is alive.
二氧化碳几乎未加捕获，部分原因是没有可盈利的方式对它加以利用。
Almost none of the carbon dioxide is captured, partly because there is no profitable way of using it.
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