Mary was dressed in blue while Jane was dressed in red.

问题描述:

Mary was dressed in blue while Jane was dressed in red.
为什么用的被动语态was dressed

“be dressed in + 颜色”是一个系表结构.Mary was dressed in blue 表示Mary穿着蓝色衣服的状态.类似的结构:be covered withThe top of the mountain is covered with snow all the year round....