HSK 7-9
反射
fǎnshè动
to reflect; reflection (from a mirror etc); reflex (i.e. automatic reaction of organism)
镜子反射出窗外阳光。
Jìng zi fǎn shè chū chuāng wài yáng guāng.
The mirror reflected the sunlight outside the window.
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Appears across levels (7-9) in the HSK 3.0 word list.