Phassus excrescens has one generation a year in Harbin and infests middle part of trunk and rootstock of poplar and willow seedlings.是什么意思_Phassus excrescens has one generation a year in Harbin and infests middle part of trunk and rootstock of poplar and willow seedlings.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句