Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/42ceae1956f458a415ed261003053c8a.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 perturbation (n.)是什么意思,perturbation (n.)的翻译,perturbation (n.)音标、读音、用法和例句_按摩法牛津词典