回退

回退	huí tuì	to revert (computing) / to return (a package or letter) to the sender
回	huí	to circle / to go back / to turn around / to answer / to return / to revolve / Hui ethnic group (Chinese Muslims) / time / classifier for acts of a play / section or chapter (of a classic book)
回	huí	to curve / to return / to revolve
回	huí	variant of 回
退	tuì	to retreat; to withdraw / to reject; to return (sth) / to decline