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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There are many scale-different sand-gravel body that developed in downdropped block of Chengnan great fault.

埕南大断层下降盘发育了许多不同规模的砂砾岩体。

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