Settled!就这么定了！

A:How will you spend this lovely weekend?
你打算怎么度过这个愉快的周末？
B:I have no idea,any suggestions?
我不知道，你有什么建议？
A:We haven't played chess for a long time.How about playing chess.
我们很久没有下棋了，切磋一下怎么样？
B:It must be fun.But you know,I am not good at chess.I never won since I've learnt to play chess.
一定很有趣。但是你知道，我棋下的不好，从开始学到现在我还没有赢过呢。
A:Don't worry,I will teach you how to win.
不要担心，我会教你怎么赢。
B:Ok,settled then.
好的，那就这么定了。