2018-12-03 成本是什么？
2018-12-03 本文已影响0人
Curtain_d9d5
In life there when I decide to do something I'll face the opportunity cost. If I choose to learn English well then I need to devote a lot of time into it which makes me might can't do other things. And I think because of that I need to be very careful about what decision I make. I need to consider more about the cost.
