彼女は心臓がどきどきするのを感じました。
Sentence Analyzer
English Translation
        She felt her heart beat quickly.
    
Furigana
Romanji
        Kanojo wa shinzō ga dokidokisuru no o kanjimashita.
    
Words
            
                彼女
            
            
                (かのじょ)
            
        
        
            she; her; her; girlfriend; sweetheart
        
    
            
                は
            
            
                (は)
            
        
        
            topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis
        
    
            
                心臓
            
            
                (しんぞう)
            
        
        
            heart; guts; nerve; cheek; gall; spine; central part
        
    
            
                が
            
            
                (が)
            
        
        
            indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
        
    
            
                時々
            
            
                (ときどき)
            
        
        
            sometimes; at times
        
    
            
                の
            
            
                (の)
            
        
        
            indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question
        
    
            
                を
            
            
                (を)
            
        
        
            indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.
        
    
            
                感じる
            
            
                (かんじる)
            
        
        
            to feel; to sense; to experience