0 Old HSK word(s):
内忧外患* *

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

内 inside
忧 sad, grieved / grief, melancholy
外 out, outside, external / foreign
患 suffer, worry about / suffering
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual