Warning: file_put_contents(): Only 0 of 6463 bytes written, possibly out of free disk space in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 quarry operation是什么意思，quarry operation的翻译，quarry operation音标、读音、用法和例句_94生活常识网有道词典
A quarrying operation in Reading, Pa., is believed by some seismologists to have set off a series of smaller quakes in that region. 还有一些人相信宾夕法尼亚州雷丁的采石作业引发了该地区一系列规模较小的地震。