A screen door spring.

纱门上的弹簧。

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He would run and snatch the book, spring through the door and fly.

他会跑过去把书抢过来，从门里跳出来逃走。

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Spring hesitates at winter's door, but the mango blossom rashly runs out to him before her time and meets her doom.

春天流连于严冬的门前，鲁莽的芒果花向他飞奔，花期未至她就突遭厄运。

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Outside the front door, the air was New England chilly, fresh with the beginning of spring, and I wheeled my chair through the big door, down the ramp onto the sidewalk, thinking of Joey Buckley's brown eyes, deep and dark as winter ponds.

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