Chang points out that sales of the number-one flower in the US, the poinsettia, reach 50 million plants every November-December. "How many [US] greenhouses does it take to handle all those plants?" asks Chang.
張能倚指出，美國銷售排名第一的盆花聖誕紅，每年在 11 ~ 12 月銷售量可達 5,000 萬盆，「那得要多少溫室來容納？