markup on cost

例句：

1. 1. The artistmarked the canvas with a brush.
   艺术家用画笔在画布上做了标记。
2. 2.The book was marked by its author asa classic.
   这本书被作者标记为经典之作。
3. 3. The teacher marked the exam papers witha red pen.
   老师用红笔在试卷上做了标记。