exarch
发音
英 ['eksɑ:k]
美 ['eksɑk]
-
- n.
- 总督，主教，大主教
单词词源
双语例句
- 1. In the primary structure of root , the primary xylem is diarch and the development of both the primary xylem and the primary phloem is exarch .
- 在根的初生结构中，其初生木质部为二原型，木质部及韧皮部的发育均为外始式。