夜空呈红色往往预兆第二天天气晴朗。
A red sky at night often indicates fine weather the next day.
帕米萨诺和罗梅蒂在7月29日同一天生日,这可是365分之1的小概率,考虑到闰年,可能更小;这是某种预兆吗?
In a 1-out-of-365 chance, or less considering leap year, Palmisano and Rometty share the same birthday, July 29th; is that an omen of some kind?
这时我已有好几个月没有她的消息了。有一天,毫无征兆的,他突然打来电话。
I hadn't heard from him in months, and then out of the blue he called.
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