Alligator lives in the rivers and lakes in the hot wet parts of America and China.

短吻鳄产于美洲和中江湖及湿热地带。

In the pale light of the tunnel, 30-foot fossil traces of lycopsid gleam slickly in the shale roof like alligator skins.

它们看起来像一棵棵巨型芦笋。在隧道内灯光下，页岩顶部30英尺长石松化石遗迹就像鳄皮般发出柔滑光亮。