He says people can hang onto their cars longer because automakers are making them far better than they did in 1995 , first year that polk began tracking the average age .
Polk 's representative said the united states wanted to buy california and some other mexican territory .
波尔克总统的代表说,美国想购买加利福尼亚和墨西哥的其他一些地方。
Sedated only by brandy , 11th president of the united states james polk survived gall bladder surgery at the age of 17 .
美国第11任总统詹姆斯波尔克十七岁时做胆囊手术没有用麻醉剂,而是靠白兰地支撑下来的。
According to rl polk , a market-research firm , sales of cars below $ 14000 will grow by 70 % in the next nine years , compared with an increase of 30 % for all vehicles .