______________________________________ British officials gave no details Sunday of the threat or when the embassy would reopen. The closing follows an Australian warning Saturday that terrorists could be planning attacks against tourist sites, government ministries and embassies in Cairo. ________________________________周日英国官员没有透露关于威胁或大使馆重新开放时间的具体细节.大使馆关闭前,澳大利亚于周六发布了一份警告,表示恐怖分子正在密谋袭击开罗的旅游景点,政府部门以及各国的大使馆.