perennial organism

• 多年生生物

perennial organism的用法和样例：

例句

1. The research progress in tissue culture and genetic transformation of perennial ryegrass were reviewed.The biosafety of perennial ryegrass was discussed for the first time.
   为此，概述了多年生黑麦草组织培养和遗传转化方面的研究进展，首次探讨了转基因多年生黑麦草的生物安全性。