Depending on the type of network to be implemented, the number of markup languages, and handheld devices to be supported, testing can be cumbersome and complex.

根据要实现的网络类型、标记语言的数量和所支持的手持设备，测试可能会既麻烦又复杂。

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But he argues that the number is likely to be large because the type of complex interactions between mutations that caused irreversibility in the evolution of the cortisol receptor are common.

但他坚持认为这样的蛋白质数目可能会很多，因为在皮质醇受体的进化过程中，导致不可改变性的突变之间复杂的相互作用的形式比比皆是。

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The only slightly complex part is the telephone because you need to specify a type as well as the number.

惟一有点复杂的部分就是电话，因为您需要指定类型和号码。

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