On the one hand, the observer may remain casual and participate in the seeming simplicity of the benefits of the applied pattern.
一方面，仍然可能不会注意到模式，而仅会看到所应用模式的好处。
On the one hand, the observer may remain casual and participate in the seeming simplicity of the benefits of the applied pattern.
一方面，仍然可能不会注意到模式，而仅会看到所应用模式的好处。
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