China is the origin centre of Chinese cabbage-pak-choi (Brassica campestris L. ssp. chinensis Makino; syn. B, rapa L. ssp. chinensis) which is cultivated in a wide range of area and plays an important role in farming industry.是什么意思_China is the origin centre of Chinese cabbage-pak-choi (Brassica campestris L. ssp. chinensis Makino; syn. B, rapa L. ssp. chinensis) which is cultivated in a wide range of area and plays an important role in farming industry.在线翻译_英语_读音_用法_例句