在买者和卖者之间有强大的竞争。
卖者：您好，有能帮您的吗?。
卖者：当然可以！
垄断是一种在市场中只有一个卖者的情况。
Monopoly is a situation where there is a single seller in the market.
我们也不能保证买者或卖者实际上会完成交易。
We cannot ensure that a buyer or seller will actually complete a transaction.
支付意愿：卖者愿意为某种物品支付的最高量。
P107 Willingness to pay: the maximum amount that a buyer will pay for a good .
人们匆忙地赶到国王的市场去，所有买者和卖者都在那里。
Men hasten to the King's market. All the buyers and sellers are there.
假若你一开始就什么都上，那你更像一个每天挑着货蓝的买卖者。
You are trading more like a day-trader if you put it all on at once.
这两只鹦鹉携手协力，与野生动物贩卖者抗争，最后组建了自己的小家庭。
Together, the two movie macaws battle wildlife traffickers and eventually start a small family.
这两只鹦鹉携手协力，与野生动物贩卖者抗争，最后组建了自己的小家庭。
Together, the two movie macaws battle wildlife traffickers and eventually start a small family.
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