◎ 天有不测风云 tiān yǒu bùcè fēngyún[sth. may happen any time,as a storm may arise from a clear sky] 天空中有难以预测的天象,比喻有些事情难以预料 -----------------国语辞典:(谚语)比喻世事吉凶难以预料。元.无名氏《合同文字.第四折》:「天有不测风云,人有旦夕祸福,那小厮恰才无病,怎生下在牢里便有病。」《三国演义.第四九回》:「孔明笑曰:『天有不测风云』,人又岂能料乎?」
◎ 天南地北,天南海北 tiānnán-dìběi,tiānnán-hǎiběi(1) [separate far and wide;be far apart]∶相距遥远(2) [every and any subject under the sun]∶形容 [谈话] 漫无边际(3) [from different places or areas]∶形容地区各不相同-----------------国语辞典:比喻距离很远。《镜花缘.第六回》:「此后一别,不惟天南地北,后会无期。」也作「海北天南」。讲话没主题,无所不谈。如:「天南地北乱扯。」英语 distant places, all over the country, (to talk) about this and that