n.预兆，征兆，先兆，(尤指)恶兆，凶兆

原形：portent复数：portents

The portent of the earthquake was not heeded, and many lives were lost.
地震的预兆被忽视了，许多人因此丧生。
The appearance of a comet was seen as a portent of impending disaster.
彗星的出现被看作是即将发生的灾难的预兆。
The dark clouds gathering on the horizon were a portent of an approaching storm.
天边聚集的乌云预示着暴风雨即将来临。
The sudden silence in the forest was a portent of danger.
森林中突然的寂静是危险的预兆。
The birth of a white deer was considered a portent of good fortune in ancient folklore.
在古老的民间传说中，白鹿的诞生被视为吉祥的预兆。
The stock market crash was a portent of the Great Depression.
股市崩盘是大萧条的前兆。
A solar eclipse has often been regarded as a portent of doom throughout history.
在历史上，日食常常被视为不祥之兆。
The failure of negotiations could be a portent of a long and bitter conflict.
谈判的失败可能是长期激烈冲突的预兆。
The portent of rising unemployment rates sparked fears of an economic downturn.
失业率上升的迹象引发了经济衰退的担忧。
The unusual behavior of animals before a natural disaster is often seen as a portent.
自然灾害发生前动物的异常行为常被视为预兆。