Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/b7bb96b1d266f098368c093fc35258fb.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 alluvial fan英英字典_alluvial fan剑桥英语解释_alluvial fan柯林斯英文解释_甲百汇小鸡词典
1. N a fan-shaped accumulation of silt, sand, gravel, and boulders deposited by fast-flowing mountain rivers when they reach flatter land 冲积锥; 湍急的河水到达平地后形成的由泥、沙、石、卵组成的锥形沉积物