circle是可数名词，复数是circles.
You're moving in very exalted circles!
你这是出入于显贵要人的圈子呀！
We can speculate that the stone circles were used in some sort of pagan ceremony.
I put down the two red circles!
我放下了那两个红色的圆圈！
Maybe we're walking in circles.
也许我们在绕圈子。
Blind birds fly in circles.
眼瞎的鸟儿转圈飞。
