在西方国家，打听私人问题如别人的年龄是不礼貌的。
It is impolite to ask about such private questions as other's age in western countries.
美国和其他西方国家在每一次移民浪潮中都经历了适应性问题。
The United States and other western countries have experienced adjustment problems with each new wave of immigrants.
西方国家也有自己的问题。
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