0 Old HSK word(s):


Definitions from Unihan Copyright © 1991-2015 Unicode® Inc. All rights reserved.


Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual




Bikonkavlinse (S) [shuang1 ao1 tou4 jing4] 双凹透镜