This should only be your last resort, reserved only for those instances where tips one through four have failed.

这只能是你最后的方法，在之前四个方法都失败的情况下才能使用。

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White cell transfusion is usually reserved for uncommon instances of severe infections with bacteria or fungi that do not respond to antibiotics or anti-fungal drugs.

对于服用抗生素或抗真菌药物而无起色的严重的细菌或真菌感染病例通常采取白细胞输注的方法。

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Amazon Web Services has already announced its reserved instances marketplace, essentially an eBay for selling off unused portions of pre-purchased AWS computing services.

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With reserved instances, companies pay a reservation fee for an instance up front and a much lower hourly rate for use of that instance.

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