Apple stem grooving virus has been reported in most pome fruits producing areas.Although infection of the virus in fruits remains symptomless, it causes significant yield reduction.是什么意思_Apple stem grooving virus has been reported in most pome fruits producing areas.Although infection of the virus in fruits remains symptomless, it causes significant yield reduction.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句