First draw a circle, pause for 5 seconds and then clear it, then draw an arc

from turtle import *
from time import *
pencolor('red')
circle(-80)#80表示圆半径，如果是正数，则按照逆时针方向绘圆，反之若为负数则按照顺时针方向绘圆
sleep(5)#暂停5秒
reset()#清空画布且回到初始坐标位置

pencolor('green')
circle(80,180)#圆半径为正数则按照逆时针方向绘制圆
done()

reset()#清空画布且回到初始坐标位置

After a pause of 5 seconds, the graphics are obtained: