许多地区要求开得慢的司机在最右侧车道行驶，更快的车流在中间车道行驶，开得最快的司机在最左边车道也就是快车道行驶。

Many areas require that slow drivers drive in the far-right lane. Faster moving traffic operates in the middle lanes. The fastest cars drive on the far-left side — also called the fast lane.

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本书为《经典名著快车道》系列丛书之一。故事主要叙述的是一只名叫巴克的狼狗，被人偷走运送到加拿大西北部的严寒地区，为那些淘金者工作。

This abridged classic tells the story of Buck, a much loved dog, who is stolen from sunny California and transported to the snowy wastes of northwest Canada to work for gold hunters.

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