我正在尝试使用python tkinter创建一个匹配国家和首都的游戏 . 我现在困惑的是当我使用random.choice时 . 在我使用random.choice之后，我希望得到一个与彼此匹配的键和值 . 请帮助

from tkinter import*
import random
window = Tk()
question = 1
nations_capitals = {
    'South Korea' : 'Seoul',
    'Japan' :'Tokyo',
    'China': 'Beijing',
    'Thailand':'Bangkok'
       }
nations_flags= {
    'South Korea' : 'Korea.gif',
    'Japan' : 'Japan.gif',
    'China' : 'China.gif',
    'Thailnad' : 'Thailand.gif'
        }
wall = PhotoImage(file = "globe.gif")
wall_label = Label(image = wall)
wall_label.place(x=0,y=0)
window.title("Capital Game")
window.geometry("800x600")
window.resizable(False,False)
def Start_Game():
    choice=random.choice(nations_flags(items))
    window.destroy()
    window1=Tk()
    window1.title("Capital")
    window1.geometry("800x600")
    window1.resizable(False,False)
    window1.config(bg="skyblue")
    T = Text(window1, height=2, width = 30)
    T.pack()

    T.insert(INSERT,list(nations_flags.keys[choice]))

    flag = PhotoImage(file = list(nations_flags.values[choice]))
    flag_label = Label(image = flag)
    flag_label.image = flag
    flag_label.place(x=210,y=120)

    button1 = Button(window1, text=random.choice(list(nations_capitals.values())), bg = "white", fg = "skyblue", command = click)
    button2 = Button(window1, text=random.choice(list(nations_capitals.values())), bg = "white", fg = "skyblue", command = click)
    button3 = Button(window1, text=random.choice(list(nations_capitals.values())), bg = "white", fg = "skyblue", command = click)
    button4 = Button(window1, text=random.choice(list(nations_capitals.values())), bg = "white", fg = "skyblue", command = click)
    button1.place(x=200, y =400)
    button2.place(x=550, y =400)
    button3.place(x=200, y =500)
    button4.place(x=550, y =500)



button = Button(window, text="GameStart!", bg = "skyblue", fg = "white", command = Start_Game)
button.place(x=375, y =500)
window.mainloop()
python tkinter