Exodermis
n. [植](根的)外皮层
🗣️ 情景例句
I heard that some tours actually go down into the canyon. Is that true?
我听说有的旅游团真正下到峡谷里去了。那是真的吗？
How is Helen?
海伦好吗？
No, I'm afraid I'm not.
不，恐怕我来不了了。