He is right, I'll be bound!

我敢肯定他是对的!

《简明英汉词典》

So will Margaret, I'll be bound.

我敢说,玛格丽特也会这样做的.

辞典例句

That man , I'll be bound, from his looking, is a thief.

看外表, 我敢说, 这人是个贼.

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It will rain soon, I'll be bound.

就快下雨了, 我确信.

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Those men are behaving very suspiciously . They're engaged in some fishy business . I'll be bound.

那些人行为非常可疑,我敢肯定他们在搞鬼.

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