befog

verb

1. 使迷惑；使困惑
   to make sb confused
   1. Her brain was befogged by lack of sleep.
      她因缺乏睡眠而头脑昏沉。

1. Befog To cover or obscure with or as if with fog.
   因或似因雾遮盖或使之轮廓不清。

verb

1. make less visible or unclear
   1. The stars are obscured by the clouds
   2. the big elm tree obscures our view of the valley

   Synonym:    obscurebecloudobnubilatehaze overfogcloudmist