duò yún wù zhōng
堕:落下。落入迷茫的云雾中间。比喻迷惑不解。
南朝·宋·刘义庆《世说新语•赏誉》:“王仲祖刘真长造殷中军谈,谈竟俱载去,刘谓王曰:‘卿故堕其云雾中。’”
堕云雾中作谓语、宾语;比喻迷惑不解
be completely at a loss as in a fog