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预兆；征兆
A portent is something that indicates what is likely to happen in the future.
例句
The savage civil war there could be a portent of what's to come in the rest of the region...
那里发生的野蛮内战可能预示这一地区其他地方将会发生什么。
I hope this is a portent for the rest of the year...
我希望这对今年余下的时间是个兆头。