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to jump up to one's feet
目覚まし時計の音で飛び起きた。
I jumped out of bed at the sound of the alarm.
大きな地震の揺れで家族全員が飛び起きている。
The whole family jumped up from the strong earthquake shaking.
悪夢を見て夜中に飛び起きる。
I jump awake in the middle of the night from a nightmare.