It's fun to look at the marks later.

以后看这些标记很有趣。

My father marks my height on the door every year.

我爸爸每年在门上标记我的身高。

This symbol marks the danger zone.

这个符号标记了危险区域。

The buoy marks the entrance to the harbor.

浮标标记了港口的入口。

The teacher marks the students' assignments.

老师在学生的作业上做标记。

He marks the map to find his way home.

他在地图上做标记，以便找到回家的路。

Some people consider birthmarks to be unique beauty marks.

有些人认为胎记是独特的美丽标记。

The hilum marks the point where the seed was attached to the plant.

种脐标记了种子与植物相连的点。

You need to use double quotation marks to indicate direct quotes.

你需要用双引号来标记直接引用的内容。

She marks the edges of the book to remember important passages.

她在书的边缘做标记，以便记住重要的段落。