Because this tracing work is interleaved with program execution, the GC can lose track of certain objects that the application can "hide" through executing loads and stores.

由于这种跟踪工作与程序的执行是交叉进行的，应用程序通过执行加载或存储将某些对象“隐藏”，因此GC可能会丢失这些对象的跟踪。

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NASA does not track UFOs, and, at the same time, we never hide any information on aliens.

NASA并未追踪不明飞行物。同时，我们也从未隐瞒过任何有关外星人的信息。

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