testa
US /ˈtes.tə/
UK /ˈtes.tə/
名词
种皮
the hard outer layer of a seed
示例:
•
The seed's testa protects the embryo inside.
种子的种皮保护着里面的胚胎。
•
Some seeds have a very tough testa that requires scarification to germinate.
有些种子的种皮非常坚硬，需要划伤才能发芽。