crux的復數
Crux \Crux\ (kr[u^]ks), n.; pl. E. {Cruxes} (-[e^]z), L. {Cruces} (kr[udd]"s[=e]z). [L., cross, torture, trouble.] Anything that is very puzzling or difficult to explain. --Dr. Sheridan. The perpetual crux of New Testament chronologists. --Strauss.
cruces See {crux}