- 的: 4次方是 The fourth power of 2 i ...
- 先兆的,预兆的: premonitory
- 恶兆的: ill-omened; portentous (ominous; marvelous, pompous )
- 吉兆的: auspicious
- 前兆的: augural; ominous; portentous; precursory; premonitory; prognostic; prophetical
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