单词：welding alloy
单词：welding alloy 相关文章
The U.S. population is increasing at nearly one percent a year, making the United States the world's fastest growing industrial nation. 美国人口正以每年将近1%的速度增长，这使美国成为世界人口增长最快的工业化国家。
VOA双语新闻 Bilingual News
All races and ethnic groups in the U.S. increased in number last year. However, Asian and Hispanic populations continued to be the fastest-growing, according to the Census Bureaus yearly population count. The agency recently released the new informat
2017年VOA慢速英语(六)月
All races and ethnic groups in the U.S. increased in number last year. However, Asian and Hispanic populations continued to be the fastest-growing, according to the Census Bureaus yearly population count. The agency recently released the new informat
2017年VOA慢速英语(六)月
All races and ethnic groups in the U.S. increased in number last year. However, Asian and Hispanic populations continued to be the fastest-growing, according to the Census Bureaus yearly population count. The agency recently released the new informat
2017年VOA慢速英语(六)月
By Mike O'Sullivan Los Angeles 08 March 2006 watch US Population report Census officials say the U.S. population will reach 300 million in October, and that the 300th million American may well be a La
2006年VOA标准英语（三月）
By Lisa McAdams Moscow 08 March 2006 No country faces as severe a population decline as Russia. Disease, accidental death, and a decline in healthy newborns are to blame. In fact, deaths in Russia out
2006年VOA标准英语（三月）