佐以酸爽紫色苏木酱的无麸质火鸡肉丸，富含盛夏时节的西葫芦丝食材。（Gretchen McKay/Pittsburgh Post-Gazette/TNS提供）（Pittsburgh Post-Gazette的Gretchen McKay撰文／大.纪.元;记者艾琛编译）肉丸子堪称国民美食。...
