开怀

开怀	kāi huái	to one's heart's content / without restraint
开	kāi	to open (transitive or intransitive) / (of ships, vehicles, troops etc) to start / to turn on; to put in operation; to operate; to run / to boil / to write out (a prescription, check, invoice etc) / (directional complement) away; off / carat (gold) / abbr. for Kelvin, 开尔文 / abbr. for 开本, book format
怀	Huái	surname Huai
怀	huái	bosom / heart / mind / to think of / to harbor in one's mind / to conceive (a child)