HSK 7-9
重重
chóngchóng形
layer upon layer; one after another
大山重重挡住远方视线。
Dà shān chóng chóng dǎng zhù yuǎn fāng shì xiàn.
Layer upon layer of mountains blocks the distant view.
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Appears across levels (7-9) in the HSK 3.0 word list.