红色的圆圈标注了岛屿的位置。

The red circle ___marks the island's position.

他的数学成绩比上学期提高了。

His ___marks in math have improved compared to last semester.

窗户上有雨水留下的痕迹。

There were water ___marks on the window after the rain.

她的演讲展现了领导才能的迹象。

Her speech showed ___marks of leadership potential.