"If you rub your chopsticks too much they'll become sharp and you'll prick your mouth."
"If you rub your chopsticks too much they'll become sharp and you'll prick your mouth." "If you rub ~" 「〜をこすったら」 "your chopsticks" 「箸」・「あなたの箸」 "too much" 「余計に」 "they'll become sharp" 「トゲトゲでできて」 "you'll prick your mouth" 「口に刺さるよ」