英语语法分析

With several methods, the developmental anatomy of the wood of Zelkova schneideriana was studied.

应用多种制片方法对榉树木材的发育解剖学进行了研究。

The several-hundred-year-old zelkova trees and nettle trees standing in the middle of the village are designated as natural monuments.

村子中间几百年树龄的榉树、朴树已被指定为自然保护对象。