回收

回收	huí shōu	to recycle / to reclaim / to retrieve / to recover / to recall (a defective product)
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
收	shōu	to receive / to accept / to collect / to put away / to restrain / to stop / in care of (used on address line after name)