But natural distribution of Alstonia scholaris, the planting and cultivation of Alstonia scholaris and congenial regions for its growth are not studied.是什么意思_But natural distribution of Alstonia scholaris, the planting and cultivation of Alstonia scholaris and congenial regions for its growth are not studied.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句