There are two Layers of cells in the tunica of the shoot apex of Sesa-mum indium and the second layer of cell of tunica.是什么意思_There are two Layers of cells in the tunica of the shoot apex of Sesa-mum indium and the second layer of cell of tunica.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句