The sex organs appear about 5 weeks after sowing.The antheridia consist of 3 cells.The archegonial neck usually consists of 4 rows and 4 columns of cells at maturity.是什么意思_The sex organs appear about 5 weeks after sowing.The antheridia consist of 3 cells.The archegonial neck usually consists of 4 rows and 4 columns of cells at maturity.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句