Question

如下题中 ,黄色标出的部分做什么成分,是不是有省略?这是是什么语法点

Answer 1

本句有误 应该把 spreading 改为spread 是与 either applied using a knife or diluted 的并列的过去分词

即 acrylic paints are either applied using a knife or diluted and spread with a paintbrush

using a knife 是状语 修饰are either applied or diluted

原句的主动语态 可以是 using a knife ,we either apply or dilute acrylic paints ,and we spread them with a paintbrush