Chinese

		one; 1; single one; 1; single; a; (before verbs) as soon as, once; (before a noun) entire (family, etc.)	a slice; piece; flake a slice; piece; flake; thin; slice; disc; sheet
simp. and trad. (一片冰心)		一	片	冰心
Literally: “a heart of ice”.

Idiom

一片冰心

1. of pure and noble character