喫煙が健康に悪いという事実を忘れてはいけません。
Sentence Analyzer
English Translation
        Don't forget the fact that smoking is bad for your health.
    
Furigana
Romanji
        Kitsuen ga kenkō ni warui toiu jijitsu o wasurete waikemasen.
    
Words
            
                喫煙
            
            
                (きつえん)
            
        
        
            smoking
        
    
            
                が
            
            
                (が)
            
        
        
            indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and
        
    
            
                健康
            
            
                (けんこう)
            
        
        
            health; sound; wholesome
        
    
            
                に
            
            
                (に)
            
        
        
            at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although
        
    
            
                悪い
            
            
                (わるい)
            
        
        
            bad; poor; inferior; evil; sinful; unprofitable; unbeneficial; at fault; to blame; in the wrong; sorry
        
    
            
                と言う
            
            
                (という、とゆう)
            
        
        
            called; named; as many as; as much as; all X; every X
        
    
            
                事実
            
            
                (じじつ)
            
        
        
            fact; truth; reality
        
    
            
                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.
        
    
            
                忘れる
            
            
                (わすれる)
            
        
        
            to forget; to leave carelessly; to be forgetful of; to forget about; to forget (an article)
        
    
            
                ば
            
            
                (ば)
            
        
        
            if ... then; when; and; why don't you...?; the more (one does something); because; since
        
    Kanji
Readings: キツ、 の.む
                        Meanings: consume, eat, drink, smoke, receive (a blow)
                    Readings: エン、 けむ.る、 けむり、 けむ.い
                        Meaning: smoke
                    Readings: ケン、 すこ.やか
                        Meanings: healthy, health, strength, persistence
                    Reading: コウ
                        Meanings: ease, peace
                    Readings: アク、 オ、 わる.い、 わる-、 あ.し、 にく.い、 -にく.い、 ああ、 いずくに、 いずくんぞ、 にく.む
                        Meanings: bad, vice, rascal, false, evil, wrong
                    Readings: ジ、 ズ、 こと、 つか.う、 つか.える
                        Meanings: matter, thing, fact, business, reason, possibly
                    Readings: ジツ、 シツ、 み、 みの.る、 まこと、 みの、 みち.る
                        Meanings: reality, truth
                    Readings: ボウ、 わす.れる
                        Meaning: forget