B：A new broom sweeps clean, to say nothing of a new government.
新官上任三把火，更别说是一个新政府了。
enact /??n?kt/ v. 颁布；制定（法律）
sweep /swi?p/ v. 打扫，清扫
■ to say nothing of 表示“更别说，更不用说”。例如：Pollution affects the soil, to say nothing of its impact on wildlife. （污染连土壤都会影响到，更不用说影响野生动植物了。）
数钞票 count bills
A：Be careful! We can't afford to make any mistakes.
仔细点儿！出了错我们可担当不起。
B：Don't worry. I'll count the bills carefully.
别担心。我会很仔细地数钞票的。
afford /??f??d/ v. 负担得起，承担得起