Warning: file_put_contents(/www/wwwroot/ppbbu/4cd.cn/cache/e32bc0221c520cca0a096bd5a4720c35.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/4cd.cn/index.php on line 55 bracketing design envelope是什么意思，bracketing design envelope的翻译，bracketing design envelope音标、读音、用法和例句_沉淀汉英词典