This line informs the proxy server to set the host name on the proxy request to that of the proxy server.

这一行通知代理服务器将代理请求上的主机名设置为代理服务器上的主机名。

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Remember, in other API calls, using GET, all the parameters can and do appear as query parameters on the URL line; using POST, they appear in the body of the HTTP request.

记住，在其他 API 调用中，若使用 GET，则所有参数可以作为查询参数出现在 URL 行；若使用 POST，则参数出现在 HTTP 请求的主体中。

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By contrast, when customers request their orders (for viewing online, perhaps), they might want to see more information, for example, the human-readable name for a part on a line item.

相反，顾客要求订单时(也许为了在线查看)，他们可能想查看更多信息，例如，行项上一个部件的可读名称。

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With a private log-in, employees can now manage their own payroll and retirement plans, request time-off and other schedule adjustments, book on-line courses and other learning and development tools, engage and be social with colleagues on intranets, and just generally manage their own work lives to an extent that was previously impossible.

FORBES: 5 Attributes of a World-Class Workforce