凶兆；不祥之兆
先理解核心含义，再看它在真实句子里的用法。
凶兆；不祥之兆；凶兆；不祥之兆
a sign that something bad is likely to happen
The team's loss in the first game was a bad omen for the season.
球队首场比赛的失利对赛季来说是个凶兆。
凶兆；不祥之兆
a sign that something bad is likely to happen
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Dictionary facts from AI_SUPPLEMENT.