0 Old HSK word(s):
见机行事* *

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

见 see, observe, behold / percieve
机 desk / machine / moment
行 go / walk / move, travel / circulate
事 affair, matter, business / to serve / accident, incident
Hsk Characters:
HSK -Characters and beyond:
GbBig5EngRadMegaTripleMultilingual