buyout (n.)the purchase of a company or business购买下

[例]  If the workers do approve the buyout, their company will become the nation’s largest employee-owned enterprise.

 buy up  （v）to buy all or nearly all of what is available of something 尽可能买断

[例]　In order to benchmark their products, they bought up all lines of their rivals.

 buyer’s market (n) a situation where certain products are in plentiful supply, resulting in low price and good credit term for buyers 买方市场

[例]　Too many entrants into this market created a buyer’s market in TVs.　

[反义词]　seller’s marker

 by-product [5baIprRdQkt] (n.) substance produced during the making of sth else 副产品

[例]  Ammonia, coal tar and coke are all by-products obtained in the manufacture of the coal gas.

[同义词]  spin-off

 byte (n) a unit of computer information consisting of a number of bits or binary digits 字节

[例]　The speed of download is about 1 m bytes per second.

CAD(=Computer Aided Design) (n.) design and drafting performed interactively on a computer计算机辅助设计

[例]  Each student majoring in architecture should learn CAD.

 call [ kC:l ]1. (n.) visit, telephone call访问，电话

[例]  The salesman plans to make seven calls.

2. (v.) telephone打电话

 call on (v.) visit拜访

[例]  He will call on our major customers next week.

 campaign [ kAm5pein ] (n.) plan of action（商业）活动

[例]  advertising campaign