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to push aside; to push one's way through
人混みひとごみを掻き分けかきわけて前まえに出でた。
I pushed through the crowd to get to the front.
草くさを掻き分けかきわけながら進んすすんだ。
I made my way through the grass.
波なみを掻き分けかきわけて泳いおよいだ。
He swam through the waves.