今天我们把汽车当作生活必需品，但是起先汽车只是富人才能买得起的奢侈品。1899制造和出售的汽车只有600辆。

To achieve and maintain physical fitness, people should eat a balanced diet and exercise regularly. A balanced diet includes all the nutrients the body needs to remain healthy.

Today we think of automobiles as a necessity, but at first the automobile was a luxury that only the rich could afford. In 1899, only 600 were built and sold.