Therefore, make sure you understand the effect of an expression before you execute it.

因此，在计算机表达式之前，请务必了解表达式的作用。

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Compared with existing techniques, it can make an unexpected effect.

它与现有技术相比，能产生意想不到的效果。

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Compared with existing techniques, it can make an unexpected effect.

它与现有技术相比，能产生意想不到的效果。

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