Warning: file_put_contents(/www/wwwroot/zidian/biehu.cn/cache/0696d4b5a89d19072a361b625a2ab828.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/biehu.cn/index.php on line 58 bivariate generating function是什么意思，bivariate generating function的翻译，bivariate generating function音标、读音、用法和例句_甲百汇小鸡词典