IT顾问新手必须牢记为其前半小时在正常现场服务费率的基础上追加30%到40%，或者干脆追加一个固定费率的附加费用。

New IT consultants must remember to charge 30% to 40% more than their regular onsite rate for the first half-hour or simply add a flat-rate callout fee.

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显式服务上下文的表现形式是作为追加于服务方法调用的附加参数。

The explicit service context is represented as additional parameters appended to the service method calls.

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