爱国主义在美国很容易了解；它意味着通过为国家提高警惕的方式来为自己提高警惕。
Patriotism is easy to understand in America; it means looking out for yourself by look out for your country.
一谈到爱国主义，他就很偏激。
When it comes to talking about patriotism, he's an extremist.
爱国主义过了头即可导致仇视一切外国人。
Excessive patriotism can lead to xenophobia.
