其实，并非Sam不懂礼貌，而是美国人对于公事和自己的私人生活区分得很清

In fact, it is not that Sam does not understand politeness, but that Americans clearly distinguish between official business and their private lives and are not used to spending a lot of time and energy to maintain relationships. For Sam, he did not feel that he was impolite, and this misunderstanding led to the alienation of the relationship between the two parties. Therefore, the formation of business etiquette is closely related to the values ​​of national culture.

In fact, it's not that Sam is not polite, but that Americans are very clear about business and their private lives, and they are not used to spending a lot of time and energy maintaining relationships. For Sam, he didn't feel rude, a misunderstanding that led to a estrangement. Therefore, the formation of business etiquette is closely related to the values of national culture.

In fact, it's not that Sam is impolite, but that Americans are very clear about the difference between business and their personal lives, and are not used to spending a lot of time and energy to maintain relationships. For Sam, he didn't feel impolite, which led to the estrangement between the two sides. Therefore, the formation of business etiquette is closely related to the values of national culture.