Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/fd25cbab68a99c984c9454f5d8b58d99.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 infrequent (adj.)是什么意思，infrequent (adj.)的翻译，infrequent (adj.)音标、读音、用法和例句_沉淀汉英词典