“一带一路”引入中国的那些食材（组图）

A lettuce is pictured at Kajodlingen farm in Gothenburg, Sweden, September 28, 2016. [Photo/Agencies]

18. Lettuce 莴苣

Lettuce originated from the Mediterranean coast, and appeared in China around the Sui (AD 581-618) and Tang dynasties.
莴苣发源于地中海沿岸，隋朝（公元581-618年）和唐朝期间开始在中国出现。