For example, a probe can represent something as simple as invoking a system call or more complicated interactions such as a particular line of code being executed.
例如，探针可以表示简单的系统调用，也可以表示更加复杂的交互，比如执行特定的代码行。
This particular line is marked as partially hit because line 122 hasn't been executed.
这一特殊行被标记为部分hit，因为第122行没有执行。
By using addresses, you can tell sed to perform edits only on a particular line or lines.
通过使用地址，可以告诉sed只对某一或某些特定行进行编辑。
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