Why not =why dont you do sth =what about doing sth =how about doing sth 扩展资料 Why not take a few days off? 为什么不休息几天呢？ Why not pay monthly and spread the cost of your car insurance? 你为什么不把汽车保险费按月分期支付呢？ If you love each other, why not get married?...
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