一句话一个克林斯字典基本单词B

271、businessman        
        A businessman is a man who works in business.
   

272、busy        
        busy  busier  busiest 
    When you are busy, you are working hard or concentrating on a task, so that you are not free to do anything else.   

273、but        
      You use but to introduce something which contrasts with what you have just said, or to introduce something which adds to what you have just said.
    

274、butter        
    Butter is a soft yellow substance made from cream. You spread it on bread or use it in cooking.
    

275、butter up            
       
    If someone butters you up, they try to please you because they want you to help or support them. (BRIT, INFORMAL)
    

276、butterfly          
      A butterfly is an insect with large colourful wings and a thin body.
   

277、button        
      Buttons are small hard objects sewn on to shirts, coats, or other pieces of clothing. You fasten the clothing by pushing the buttons through holes called buttonholes.
   

278、buy        
        buy  buys  buying  bought 
    If you buy something, you obtain it by paying money for it.
      

279、buy into            
            If you buy into a company or an organization, you buy part of it, often in order to gain some control of it.
    

280、buy off            
        If you say that a person or organization buys off another person or group, you are criticizing the fact that they are giving them something such as money so that they will not complain or cause trouble.