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to steam (food)
芋を蒸かしておやつに出してくれた。
She steamed sweet potatoes and served them as a snack.
野菜は蒸かすと栄養が逃げにくい。
Steaming vegetables helps retain their nutrients.
肉まんを蒸かすと湯気がたくさん出る。
Steaming meat buns produces a lot of steam.