It is very unnerving to find out that someone you see every day is carrying a potentially deadly virus.发现朝夕相处的人竟携带着一种可能致命的病毒, 是一件令人很不安的事情。

She had the unnerving habit of continuously touching people she was speaking to.她说话时会不停地触碰对方, 这习惯让人觉得不自在。