These rough roads soon wore the tread of motorcycle tires off.
这
岖不平的路很快就把摩托车轮胎磨平了。
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章贯通四级词汇 
) Before the Nautilus's spur there lay vast broken plains, a tangle of confused chunks with all the helter-skelter unpredictability typical of a river's surface a short while before its ice breakup; but in this case the proportions were gigantic.
对着诺第留斯号的冲角,展开
片崎岖不平的广大平原,夹杂了混乱不清的大冰群,再加上那种乱七八糟凌乱无序的景象,就像在解冻前不久的时候,河面所显出来的
样,不过面积是十分巨大罢了。