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So clam the gravel continuously roll mill, hope will sand smooth, that don't harm the body, but paid his own blood, suffered painful torture…
于是，蚌将沙砾不停地卷磨，希望将沙砾磨平，以至于不伤害它的身体，但却付出了自己的鲜血，承受着痛苦的折磨！
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