囤积居奇: store up goods to make a good bargain; buy up (sth.) in order to sell it at a profit later on; corner the market; engross the market; hoard and corner; hoard and hold out for higher prices
蒙混: deceive or mislead people 短语和例子别让他那友好的言词把你蒙混住。 don't let his friendly words mislead you
