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单词
black economy
释义
black economy
ˌblack eˈconomy
noun
the black economy
social studies
,
economics
business activity that takes place secretly, especially in order to avoid tax
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black market
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unyielding
unzip
up-
up
up-and-comer
up-and-coming
Upanishads
upbeat
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upbringing
UPC
upchuck
upcoming
upcountry
update
Updike, John
updraft
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upgrade
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更新时间:2025/11/3 5:15:00