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砚
Inkstone
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⌘K
汉ā
a1
ㄅ
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凸凸
tū
tū
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Meanings
CC-CEDICT
tū
tū
1.
convex on both sides (of lens)
2.
biconvex
CC-CEDICT · CC BY-SA
Stroke order
Components
凸
=
丄
凸
=
丄
Components from cjk-decomp · MIT
Characters
凸
凸
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