1. Absolutely！/ Definitely！
    那當然！
    2. It's certain.那是一定的。
    3. It's for sure！/ Sure thing！
    那是一定的！
    4. You bet！/ You betcha！/ You bet your life！
    我可以打包票！
    5. No doubt！/ There's no doubt about it！
    毫無疑問！
    7. It's in the bag.已經(jīng)是囊中之物了。（十拿九穩(wěn)、跑不掉的。）
    8. It's settled. / It's set in stone.已經(jīng)定案了。
    9. It's a done deal. / It's a dead cert！
    已經(jīng)定案了。
    10. Sorted！
    搞定！（英式俚語）