foolproof 

  1. 形容詞
十分簡單的
十分安全的, 安全無比的
笨人也能懂的
笨人也會用的

    
                        
    2. 
                                            

                

            

            
            

                

                
例句

                

                    
    
                                                    
  1. 
                                It's as foolproof as they come.                            
    2. 
                                                    
  2. 
                                It isn't foolproof , of course.                            
    3. 
                                                    
  3. 
                                A : It's amazing and a foolproof tour.                            
    4. 
                                                    
  4. 
                                Alas , this is not foolproof , either.                            
    5. 
                                                    
  5. 
                                Prepaid tuition plans aren't foolproof .                            
    6.