inauspicious

adj.

不祥的；凶兆的；不幸的；倒霉的

1. It is inauspicious to walk under a ladder.
   从梯子下走过是不吉利的。
2. Chinese people consider the number 4 as inauspicious.
   中国人认4这个数字不吉利。

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Democratic Audit: An Inauspicious Year for Democracy
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Inauspicious Beginnings: Principal Powers and International Security Institutions after the Cold War, 1989-1999 by Onnig Beylerian;...
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Heavy Metals Contamination, Inauspicious Wallop on Microbial Diversity and their Possible Remediation for Environmental Restoration
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The autopsy was conducted “Under most inauspicious circumstances:” John Turner, Harvey Cushing’s case XXXII, and his unwitting co...