新建层，命名为阴影，使用多边形套锁工具绘制影子区域。

Step 11: Next, create a new layer "shadow" and use the Polygonal Lasso Tool (L) to create a shadow area.

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缺乏对JUC锁的剖析工具正是我们开发这个锁工具，jucprofiler (Multicore SDK的一部分)的动机。

This absence of a juc lock profiling tool is the motivation behind the development of our lock tool, jucprofiler, as a part of Multicore SDK.

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财务工具将需要实现更多复杂和繁锁的计算。

The financial tool requires more involved and intricate implementations of calculate.

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