HSK 7-9
吃亏
chīkuī动
to suffer losses; to come to grief; to lose out; to get the worst of it
不懂规则的人容易吃亏。
Bù dǒng guī zé de rén róng yì chī kuī.
People who do not understand the rules can easily lose out.
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Appears across levels (7-9) in the HSK 3.0 word list.