Warning: file_put_contents(/www/wwwroot/zidian/diubi.cn/cache/d06b76698f0e79d4c0ca9235ba2be286.txt): failed to open stream: No space left on device in /www/wwwroot/zidian/diubi.cn/index.php on line 59 hopf invariant是什么意思，hopf invariant的翻译，hopf invariant音标、读音、用法和例句_果味酸柯林斯词典