bread industry

基本解释

IT WAS the industry's bread and butter for over a century.
在超过一个世纪的岁月里，它一直是行业的支柱。
blog.sina.com.cn
The generics market has always been the bread and butter of the Indian pharmaceutical manufacturing industry. However, since 2003 the global generics market has been experiencing a downward trend.
仿制药市场一直是的印度制药工业的天下，然而，自2003年全球仿制药市场已经正在呈现下降的趋势。
"I just think this is a case of throwing bread out there to see how many fish come to the surface, " said one source in the industry.
一位银行业内人士表示：“我觉得这件事不过就是扔出一片面包，看看会有多少鱼会浮出水面。”
robertafnani.com

He says the pizza industry is experiencing the same transformation as beer and bread manufacturers, a move toward authentic, hand-crafted food.
NPR: Pizza Goes Back to Its Roots
Still one thing more, fellow citizens, a wise and frugal government, which shall restrain men from injuring one another, shall leave them otherwise free to regulate their own pursuits of industry and improvement, and shall not take from the mouth of labor the bread it has earned.
FORBES: Let the Income Tax Die at Age 100