白宮三式:receipt and expenditure

receipt and expenditure
receipts and expenditures
收入:    income; revenue; receipts; g ...
和:    mix; blend
支出:    pay; expend; disburse

白宮三式:

1. 收入-支出(預期收入)=0, 不想做

2. 收入(預算)-支出=0, 畫不出餅

3. 收入-支出=0    實際收入=實際支出