HSK 7-9
打磨
dǎmó动
to polish; to burnish; to shine
工匠耐心打磨木器表面。
Gōng jiàng nài xīn dǎ mó mù qì biǎo miàn.
The craftsperson patiently polished the wooden object's surface.
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Appears across levels (7-9) in the HSK 3.0 word list.