If they are different,I should say: guaranty means "to make a promise"while warranty means "to authorize something"如果存在区别的话，我认为是保证与授权的区别。
前者保证，后者授权。
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If they are different,I should say: guaranty means "to make a promise"while warranty means "to authorize something"如果存在区别的话，我认为是保证与授权的区别。
前者保证，后者授权。