beet mosaic virusbeta virus 2簿: book甜菜: beet; sugarbeet beetroot花叶: floral leaf; mottle-leaf; mo ...甜菜花叶簿: aphidophilus betae; marmor betae; sugar beet virus 2甜菜花叶马铃薯y簿: beet mosaic potyvirus下载手机词典可随时随地查词查翻译