“胚芽鞘”的英语可以翻译为：coleoptile ...

在草本植物中,叶子在黑暗中伸长,穿破包围它们的胚芽鞘而生长.In grasses the leaves elongate in the dark and break through the surrounding coleoptiles.叶子在黑暗中伸长,穿破包围它们的胚芽鞘而生长.In the leaves elongate the dark and break through the surrounding coleoptiles....