Traditional: 虧
亏 (kuī) means “deficiency; deficit; luckily; it's lucky that...; (often ironically) fancy that...”. It is an HSK 5 Chinese character (traditional 虧) in the HSK 3.0 vocabulary.
做这笔生意亏了不少钱。
Zuò zhè bǐ shēngyi kuī le bùshǎo qián.
He lost a lot of money on this deal.
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