网站首页 汉语 德语 英语
In the wall of a pollen grain or spore: the outer layer of the exine, which has a distinctively sculptured surface.
1940s. From s- + exine. Compare nexine.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。