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to throw; to fling; to hurl; to toss
to neglect; to abandon; to leave alone; to give up on; to leave undone; to leave unfinished
彼は鍵を無造作にテーブルに抛った。
He casually tossed the keys onto the table.
ボールを高く抛って子供が喜んだ。
I tossed the ball up high and the child was delighted.
石を川に向かって抛った。
He threw a stone toward the river.