Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/1a10ab8bcab0f172ba8083626b3139bd.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 concavity (n.)是什么意思，concavity (n.)的翻译，concavity (n.)音标、读音、用法和例句_按摩法牛津词典