Warning: file_put_contents(): Only 0 of 5011 bytes written, possibly out of free disk space in /home/www/wwwroot/zidian/69228.com/index.php on line 55 久久中文字幕乱码久久午夜,91麻豆精品无码一区二区三区
1. N-PLURAL a series of coal-bearing rocks formed in the upper Carboniferous period; the uppermost series of the Carboniferous system 在上石炭紀(jì)期形成的煤系; 石炭紀(jì)躰系中最重要的系列 (習(xí)語the Coal Measures)