If I were to summarize in one sentence the single most important principle I have learned in the field of interpersonal relations, it would be this: Seek first to understand, then to be understood.

如果我要以一句话总结我在人际关系领域里学到的最重要原则，它就是：先求了解对方，再求被对方了解。

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Here I have designed bar code and identification procedures, one is to make ourselves understand the principle of producing barcode;

我在这里设计的条形码产生和识别的程序，一方面是为了使自己弄清条形码的产生原理；

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Here I have designed bar code and identification procedures, one is to make ourselves understand the principle of producing barcode;

我在这里设计的条形码产生和识别的程序，一方面是为了使自己弄清条形码的产生原理；

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