全句是这样的
问题描述：
全句是这样的
When Mike Kelly first set out to build his own private space-transportation service,he figured his bread-and-butter business would be satellites into high-earth orbit
"bread-and-butter business
答
本意是面包和黄油,这里指工资或者bread-and-butteradj.实用的,生计的,基本的bread-and-butteradj.（形容词）Influenced by or undertaken out of necessity:谋生的,为了糊口的：受生活需求支配或承担的：a bread-and...