HSK 7-9
亲眼
qīnyǎn副
with one's own eyes; personally
我亲眼看见流星划过夜空。
Wǒ qīnyǎn kànjiàn liúxīng huáguò yèkōng.
I saw a meteor streak across the night sky with my own eyes.
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Appears across levels (7-9) in the HSK 3.0 word list.