重写抽象方法，但保持方法摘要？

Override abstract method, but keep method abstract?

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对于方法，help提供了方法摘要和方法接受的输入。

For a method, help provides a summary of the method and the input that it accepts.

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Health Center以极低的开销收集广泛的方法摘要，突出显示争用锁，分析垃圾收集和堆使用情况，可视化类加载行为。

Health Center collects comprehensive method profiles with an extremely low overhead, highlights contended locks, analyzes garbage collection and heap usage, and visualizes class loading activity.

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