Oz
来自Big Physics
wiktionary
From Italian oz., abbreviation of onza (obsolete form of oncia).
etymonline
Oz
mythical land in L. Frank Baum's "The Wonderful Wizard of Oz" (1900) and sequels; according to an anecdote written by Baum in 1903, inspired by a three-drawer desktop cabinet letter file, the last drawer labeled O-Z. As Australian slang for "Australia," attested by 1983.
