Valentine’sDayisthetimeoftheyearwhencouplesshowtheirlov...
问题详情：Valentine’sDayisthetimeoftheyearwhencouplesshowtheirloveforeachotherbysendingcards，flowersandchocolates．Itsoriginsare 31 （clear）andhiddenintheriveroftime．Nobodyknowsexactly 32 St.Valen...