The compiler can observe that there is a sequence of adjacent blocks that operate on the same lock, and merge them into a single block.

编译器可以观察到有一个顺序的相邻块对同一个锁进行操作，并会把它们合并到单一块内。

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The complexity in concurrency programming stems from the fact Threads often needs to operate on the common data. Each Thread has its own sequence of execution, but accesses common data.

并发的复杂性在于，线程需要经常访问共同数据，每个线程都有自己的执行顺序，但需要访问共同数据。

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ANNOUNCER: so it seems that the voice can operate like a silent movie as a sequence of wordless gestures or a face made up of sounds.

播音员：因此，就像无声电影一样，人类声音似乎也可以看作是由声音符号组成的一系列无言的手势或表情。

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