HSK 7-9
盲目
mángmù形
(fig.) (of one's actions) blind; unthinking
盲目跟风可能造成资金损失。
Mángmù gēnfēng kěnéng zàochéng zījīn sǔnshī.
Blindly following a trend may lead to financial losses.
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Appears across levels (7-9) in the HSK 3.0 word list.