我了解加工费用，材料费，运输成本，或者那些事物的任何花费吗？
Do I know the cost of manufacturing the cost of materials, the cost of shipping or the cost of any of those things?
养狗的机会成本不单单是买狗所花的费用，还包括狗粮、请兽医、清洁地毯，和花费在遛狗上的时间。
The opportunity cost of apuppy includes not just the purchase price of the puppy, but also the food,veterinary bills, carpet cleaning, and the value of the time spent dealing withthe puppy.
养狗的机会成本不单单是买狗所花的费用，还包括狗粮、请兽医、清洁地毯，和花费在遛狗上的时间。
The opportunity cost of apuppy includes not just the purchase price of the puppy, but also the food, veterinary bills, carpet cleaning, and the value of the time spent dealing withthe puppy.
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