Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/90c6b2ae751c4a6d3f774b4ad3dfe7ff.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 free space英英字典_free space剑桥英语解释_free space柯林斯英文解释_甲百匯小鸡词典
1. N a region that has no gravitational and electromagnetic fields: used as an absolute standard 自由空間; 沒有重力場和電磁場的區域，被用作絕對標準 (Also called (no longer in technical usage) vacuum)