Warning: file_put_contents(/www/wwwroot/ppbbbu/oiqp.com/cache/e6f8a7e2c23c13a3639acac6cf0256aa.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/oiqp.com/index.php on line 55 ready reckoner英英字典_ready reckoner剑桥英语解释_ready reckoner柯林斯英文解释_奇葩剧汉英词典
1. N a table of numbers used to facilitate simple calculations, esp one for applying rates of discount, interest, charging, etc, to different sums 簡便計算表