HSK 7-9
粗心大意
cūxīn-dàyìnegligent; careless; inadvertent
他因粗心大意填错号码。
Tā yīn cū xīn dà yì tián cuò hào mǎ.
He entered the wrong number through carelessness.
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Appears across levels (7-9) in the HSK 3.0 word list.