ぱくぱくrepeatedly opening and closing (one's mouth), gasping, , flapping (e.g. shoe sole), gaping open and shut, heartily (eating), devouring, munching, gobbling

子供(こども)がご飯(はん)を元気(げんき)にパクパク食(た)べている。

The child is heartily munching on the meal. {repeatedly opening and closing (one's mouth), gasping, , flapping (e.g. shoe sole), gaping open and shut, heartily (eating), devouring, munching, gobbling}

魚(さかな)が口(くち)をパクパクさせているので餌(えさ)をやりました。

I fed the fish because it was repeatedly opening and closing its mouth. {repeatedly opening and closing (one's mouth), gasping, , flapping (e.g. shoe sole), gaping open and shut, heartily (eating), devouring, munching, gobbling}

金魚(きんぎょ)はなんで常(つね)に口(くち)をパクパクとさせているのでしょう？

Why do goldfish always keep repeatedly opening and closing their mouths? {repeatedly opening and closing (one's mouth), gasping, , flapping (e.g. shoe sole), gaping open and shut, heartily (eating), devouring, munching, gobbling}

ヒールの底(そこ)がパクパクしているので修理(しゅうり)に出(だ)さなければなりません。

The sole of my heel is flapping open and shut, so I need to get it repaired. {repeatedly opening and closing (one's mouth), gasping, , flapping (e.g. shoe sole), gaping open and shut, heartily (eating), devouring, munching, gobbling}

お寿司(すし)をパクパク食(た)べてお腹(なか)を満(み)たしたら、心(こころ)も体(からだ)も幸(しあわ)せになりました。

After heartily devouring sushi and satisfying my stomach, both my heart and body became happy. {repeatedly opening and closing (one's mouth), gasping, , flapping (e.g. shoe sole), gaping open and shut, heartily (eating), devouring, munching, gobbling}