更为中产阶级式的口音，突然响起。

More middle-class voice, suddenly excited.

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灰狼采阶级式群居，巢区约占10平方公里，大部分在夜晚掠食。

Gray wolves live in hierarchical packs whose territories cover at least 38 sq mi (100 sq km) and hunt mostly at night.

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毕竟，自二十世纪中期起，美国似乎为只有高中学历的体力劳动者找到了享受中产阶级式生活的方法。

From the mid-20th century, after all, America seemed to find a way for manual workers with only a high-school education to enjoy a middle-class lifestyle.

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