76.big business ：大公司
A term used to describe large corporations, as opposed to small individually or family-owned business.
大规模的股份有限责任公司，与私有或家庭经营的小型企业相反。
Darren wants to get into big business some day.
77.Black Monday ：黑色星期一
October 19, 1987, when the Dow Jones Industrial Average fell a record 508 points in trading on the New York Stock Exchange.
1987 年 10 月 19 日，纽约股票交易所道·琼斯工业股票平均指数狂跌创纪录的 508 点。
78.blue chip stock ：热门股票，绩优股，蓝筹股
A term used to describe high-quality stocks of financially sound corporations
指财务上可靠的公司发行的高质量股票。
Mr. Jeppson has a portfolio of nothing but blue chip stocks.
杰普逊先生持有的有价证券里全部都是热门股票。
79.bond ：债券
A security issued by a corporation or public body and carrying a fixed rate of interest
由公司或政府机构发行的固有利率的有价债券。
What’s the interest rate on these bonds?
这些债券的利率是多少？
80.boom ：繁荣
A period of great economic activity and business expansion
(企业等)经济非常活跃，是经营扩张的时期。
The soft drink business always booms in the summertime.
饮料业在夏天总是兴旺繁荣。