もう子供みたいなまねはやめなさい。
Sentence Analyzer
English Translation
        Stop acting like a child.
    
Furigana
        もう子供 みたいなまねはやめなさい。
    
Romanji
        Mō kodomo mitaina mane wa yame nasai.
    
Words
            
                もう
            
            
                (もう)
            
        
        
            now; soon; shortly; before long; presently; already; yet; by now; (not) anymore; further; more; again; another; the other; interjection used to strengthen expression of an emotion (often exasperation)
        
    
            
                子供
            
            
                (こども)
            
        
        
            child; children
        
    
            
                真似
            
            
                (まね)
            
        
        
            imitating; copying; mimicry; behavior; behaviour; action; conduct
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                止める
            
            
                (やめる)
            
        
        
            to stop (an activity); to cease; to discontinue; to end; to quit; to cancel; to abandon; to give up; to abolish; to abstain; to refrain
        
    
            
                為さる
            
            
                (なさる)
            
        
        
            to do