The downside is loss of conciseness, as can be seen from the additional call to proceed with the original method invocation visible in Figure 4, which would not be necessary with a before advice.
不好的一面是它损失了简洁性，这一点可以从需要进行额外的调用才能继续执行原来的方法调用(如图4所示)看得出来，而如果用before进行通知，这一点就是不必要的。
On the downside, multiple interfaces incur a loss of static type safety because interfaces are selected only at runtime, which makes the system more vulnerable to latent bugs that can escape testing.
多接口的缺点是，它招致了静态类型安全性的损失，因为接口只在运行时被选择，这使得系统更容易受到潜伏错误的伤害，即那些逃过测试的错误。
On the downside, multiple interfaces incur a loss of static type safety because interfaces are selected only at runtime, which makes the system more vulnerable to latent bugs that can escape testing.
多接口的缺点是，它招致了静态类型安全性的损失，因为接口只在运行时被选择，这使得系统更容易受到潜伏错误的伤害，即那些逃过测试的错误。
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