The birds circled around in the air.

鸟空中盘旋。

The teachers are used to circling the pupils' spelling mistakes in red ink.

教师习惯于用红笔圈出学的拼写错误。

In the upper left hand cornor,(there is a circle, in it there is a five yellow star.) there is a yellow star surrounded by a yellow circle.

左上角缀黄色五角星，周黄色圆圈。