英语语法分析

Objective:To study the pharmacological action of Vernonia Cinerea(L) Less.

前言： 目的：探讨伤寒草的药理作用。

Botrytis cinerea can cause great lose in crop production because of the wide host area.

灰霉由于具有广泛的宿主范围，因而可以引起农业生产中的巨大损失。

And better effects can be achieved in prevention and treatment of brain cinerea than alba.

对大鼠大脑灰质的防治效果比对大鼠大脑白质的防治效果好。