Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/13b7df33073d4252a5142b135ac3387f.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 ring binder英英字典_ring binder剑桥英语解释_ring binder柯林斯英文解释_甲百汇小鸡词典
1. N-COUNT A ring binder is a file with hard covers, which you can insert pages into. The pages are held in by metal rings on a bar attached to the inside of the file. 活页夹