What I have to do is add up all the income I have received in the year and calculate the tax that I have to pay on my annual income.
我需要做的事情是把这一年收到的所有钱加起来，然后计算我的年度收入需要支付的税费。
What should I do if have submitted the order but then still wish to add on something in my cart?
我已经下了个订单，但是我漏订了一些东西，还有想加一些东西，该怎么办？
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