一句话一个克林斯字典基本单词A

40、actress        
      An actress is a woman whose job is acting in plays or films.
    

41、actual        
    You use actual to emphasize that you are referring to something real or genuine.
   

42、actually        
      You use actually to indicate that a situation exists or happened, or to emphasize that it is true.
      

43、ad        
        ad  ads 
      An ad is an advertisement. (INFORMAL)
    

44、add        
      If you add one thing to another, you put it in or on the other thing, to increase, complete, or improve it.
    

45、add in            
      If you add in something, you include it as a part of something else.
    

46、add on            
        If one thing is added on to another, it is attached to the other thing, or is made a part of it.
   

47、add up            
      If facts or events do not add up, they make you confused about a situation because they do not seem to be consistent. If something that someone has said or done adds up, it is reasonable and sensible.
    

48、add up to            
      If amounts add up to a particular total, they result in that total when they are put together.
   

49、addition        
    You use in addition when you want to mention another item connected with the subject you are discussing.