PHP应用程序中的大多数问题与使用用户提供的数据有关，在使用它和对它执行操作前未曾预先验证和消毒。

Most problems in PHP applications relate to taking user-supplied data and doing something with it without first validating or sanitizing it.

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在使用用癌症疫苗找出更小更隐蔽的肿瘤前，必须先验证它们确实能针对特定癌症并且使快速生长的癌肿缩小。

Before they can seek out these smaller, hidden deposits of tumors, however, cancer vaccines must prove that they can actually target and shrink a cancer's more conspicuous growths.

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此外，该模型使用了非参数的基本风险，其并没有对出行时间强加任何形式的先验的参数分布。

In addition, the model USES a non-parametric baseline hazard distribution which does not impose any apriori parametric form on the departure time distribution.

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