我可以打包票 You bet.
Is this the way to High Tower Museum?" ——这是往 High Tower 博物馆的路吗？
You bet. ——一点也没错。

It's in the bag.
已经是囊中之物了。
We 're sure to win. It's in the bag, I tell you .
我们赢定了，十拿九稳的赢定了，我告诉你。

It's settled. 说定了
I suppose you're right. ——我想你是对的。
——So, it's settled 那么就这样说定了。

It's set in stone. 已经定案了。
I don't think people know how to feel about this situation because it's not set in stone.
我不认为人们知道对这种情况如何感觉，因为这不是确定的。

It's a done deal./It's a dead cert!
You'll certainly win if you use this method; it's a dead cert.
你用这种办法一定会赢，可以说是万无一失。

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